From Morte d' Arthur:
Then Sir Arthur looked on the sword, and liked it passing well. Whether liketh you better, said Merlin, the sword or the scabbard? Me liketh better the sword, said Arthur. Ye are more unwise, said Merlin, for the scabbard is worth ten of the swords, for whiles ye have the scabbard upon you, ye shall never lose no blood, be ye never so sore wounded; therefore keep well the scabbard always with you.

Given that in Dresdenverse:
1) Excalibur is a Sword of the Cross, and
2) Nicodemus has a Noose with the powers of the Scabbard above, and
3) the Swords can change form -

maybe the Noose used to be the Scabbard? Certainly Nicodemus would enjoy persuading the Knights that one of their holy relics was an evil artifact. It is Arthurian canon that the scabbard is stolen by a witch.

given cats can cross thresholds and wards without difficulty, has anyone played with using a cat as a launch mechanism for spells?

Alfred Dawkins
Supernatural advertising Executive

That'll kill you...

Patronising health adverts that make teetotallers turn to drink; inspire teenagers to smoke, or do drugs; drivers to speed. Dieting ads that send you on an eating binge. Alfred makes them all. He sees the future, a future of death, and has long since stopped trying to prevent it - instead, he sees to it that he is well paid to ensure it. The tobacco lobby loves him, and ensures that he is employed where he can do the most harm.
His actions have changed time by killing people, or on a couple of occasions having them turned into undead monstrosities - although he is only the bearer of bad news, the results have been sufficient to warp his soul beyond recognition.
Alfred knows which of the local goons are going to get killed by the PCs, so will ensure that those goons are on stand by to act as bullet shields. He should never be encountered alone.
His Lawbreaker Powers increase his inability to persuade others of the truth of their fates; Alfred deliberately tells the truth to ensure that people will not avoid their fate. He particularly enjoys it when people would have avoided the future but for his 'attempt to persuade' them to take precautions results in them refusing to do what they originally intended. (This is also necessary for him to increase his Lawbreaker Powers. Specifically, Lawbreaker 1 requires that they die because they change their action to refuse his advice; Lawbreaker 5 requires them becoming undead; Lawbreaker 6 requires a change to the city).
Important skills: Great Resources, Fair Intimidate.
Stunts: Infuriate, Teflon Persona
Powers: Cassandra's Tears, Lawbreaker 1, 5 and 6.
Against other NPCs, the -2 from Tears stacks with +3 from Lawbreaker as a -5 penalty on Discipline rolls etc to avoid temptations and continue on their normal, non-self-destructive lives.
Against PCs, Alfred should be throwing multiple compels based on their Troubles and how they will kill the PCs.

I've been mulling over how to represent aging in Dresdenverse for a little while, and it is particularly relevant to the Gold Coast, so I'll provide my current thoughts:

Aging is a set of consequences; each either reduces your refresh by 1 or renders a physical Stunt unusable (you still know the stunt though, and can teach it - allowing the possibility of the Aging Master who can train you in things they can no longer do).

Middle Age is a Moderate consequence. This reflects the unpleasant reality that bumps and scrapes you can shrug off as a teenager have an annoying habit of hanging around for weeks or months. On the upside, the character gains an additional 5 skill points, that can be placed in mental or social skills. The character likely has a 'spare tyre' or other indication of flabbiness caused by the stresses of the last decade or so.
 Middle Age does not heal, but can be bought off; simply pay for the granted skills points. Any character can buy off Middle Age, including those who are Old or Dying - this reflects the elderly who are still in hale health.

Old is a Severe consequence, and provides 10 skill points. Mundanes cannot buy off Old; the character requires at least Wizard's Constitution to do so. It is otherwise the same as Middle Aged. Characters can possess both Old and Middle Aged but need not do so.

Dying is Extreme, and provides 15 skill points. The character must have spent Refresh on regeneration to be able to buy off Dying. Note that as an Extreme condition Dying also changes one of your Aspects. Otherwise the same as Middle Aged and Dying.

In the latest collection of short stories, Mab calmly lets Molly know that if Molly wants the tithe/tiend stopped, she has to work out how to end the war with the Outsiders.

Brutal, but fair - and raising the question: can the war be won?

The Unseelie protect us from the Outsiders, the Seelie from the Unseelie, so there is the depressing possibility that there is something even worse being held back by the Outsiders, making a true victory impossible.

But assuming that is not the case, or allowing for the possibility of becoming strong enough to take on the new threat:

- Mab doesn't understand technology. Introducing her to 'ferromancy' and the force multipliers thus available could be interesting. Trolls armed with machine guns would be a game changer.

- domains can be created within the Never Never, with their own powers. Could micro-domains bec created at the borders of reality, using those rules to create weapons? Say, a domains that the piles of bones could fall into, keep falling until their speed is many multiples of the speed of sound, and then leave the domain, directed at the advancing armies of Outsiders.

- Mab's armies are probably constantly being driven insane by the Laws: they'll be racking up large amounts of knowledge of the Outside, for one thing. Granted that few of the troops will live long enough for that to be a problem, but (hopefully) some do, and if not improveed weapons and armour will change that.
A useful IoP would be one that the Outsider could put their Lawbreaker levels into, loaning them to newbie troops to help the youngsters survive, and allowing the veterans to keep their sanity a bit longer.

Anything I've missed?

While 'murder hobo' is the default PC, a workable character in Dresdenverse who relies on wealth and contacts to solve their problems. A starting PC can blow through the roof of the Buying Things chart on p322; it stops with a Legendary Resources roll (+8), granting a large corporation or a small personal island; but with Resources 4, High Concept of Rich Investor, Trouble of an Obligation to build up the family wealth, plus 5 money related Aspects, the PC is looking at +18 before rolling the dice!

The PC is easily able to create a Major Milestone every session, simply buying problem locations out from under the bad guys and gentrifying them. (Of course, the bulk of the session will then be surviving the wrath of the critters you've chased out).  While the rules suggest downgrading the rewards for doing so in a single session, that is punishing skilled play, a massive no-no: far better for the GM to say that the PC's reward is a free Resources Stunt of their choice. That is realistic, fair, balanced, and has the ethical dilemma of whether to buy Filthy Lucre – a temptation that will grow stronger each time, as the pool of available Stunts shrinks.

Anyway, the PC has far more successes than they need. Some of those successes may be needed for overcoming seller resistance of course; but if a location has been ruined by monsters, they'll probably be eager to sell. The simplest thing to do with those extra successes is to buy quality, giving the corporation extra stress boxes: the example above could have a quality of +10, giving it an additional +5 stress boxes (p320+p130). That's fairly inefficient though; the corporation is getting one stress box for every two successes – they are less well defended than an ordinary quality organisation of legendary size.

A better option is to have subsidiary organisations that provide the organisation with 'Armor'. An established contract could be bought for one success, providing Armor:1 in the desired realm; or the subsidiary could be bought outright, and provide temporary Aspects when attacking/defending in Corporate warfare.
My suggested subsidiaries are:

Physical: Security, Maintenance, Insurance, Cleaning

Mental: Legal, Accounting,  Political, Personnel

Social Armor: Public Relations, Real Estate, Murals(the giant wall ads that companies have painted that get around restrictions on billboards), Plant hire.

This has the advantage from a GM perspective that you can assign these to a company to make it harder to gain control of – but since they come with the company, increase the reward for succeeding.

Police contacts, I would simply halve the benefit of using Filthy Lucre.

Some supernatural defences can be put in quite easily by having access to an employment agency! How many mortals would have access to Bless This House – one in a hundred? Unlikely, unless a particularly devout community. One in a thousand?  Possible. One in ten thousand? Definitely. Your city will have hundreds of thousands of people in employment, providing a pool of defenders, who are easily identified by having a supernatural entering and leaving a building while job applicants are arriving.
Similarly, 'allowing' workers to hold their weddings etc for free at the business allows the possibility of rending the place to toxic to Raith Vampires. Those turgid inspirational posters are probably an unsuccessful attempt to protect the place from Skavis Vampires.

A couple of examples:
The PC is going to buy a housing estate being preyed on by ghouls. They tag the Aspect of 'invested by Ghouls' to allow an easy sale, and focus on physical security; the tenants are moved out into temporary accommodation elsewhere (easily justified by claiming the building isn't safe – which it isn't) and a week later when the ghouls have had to go hunting elsewhere, the building is repaired, repainted, and fortified, with alarms and security. Supernaturally, a 'leaking' pipes are slowly dripping holy water into the entrances from undercity.  That's a success for handling the move, plus 5 for redoing the building, plus needing a church contact to provide the holy water tag. The PC can do this easily, allowing them to keep a few Fate points for when the Ghouls attempt to follow their prey to the temporary accommodation, and/or attack the repair crews.

The PC wants to acquire a very fashionable White Court Nightclub. Although 'only' requiring a Fantastic (+) result, the Quality is sufficient to give it 3 additional stress boxes, and is Armored to the max; further, they don't want to sell. The PCs start their campaign by getting some noise violations thrown at the place: but Social Armor will protect here. They investigate buying the entire building and simply ejecting/replacing the night club (a common real world tactic, lets the buyer acquire the good will of the site for free) but the White Court either has the building or is relying on the Armor: Real Estate; either way blocked. The PCs investigate the possibilities of violence (because they are the PCs) but are then surprised to learn that the White Court is now offering the place for sale. An Investigation roll is made, and the PCs learn that the White Court is buying another location nearby and planning to move: the existing night club will be 'sold' but the bulk of the clientele will be moving with them, so they are selling a turkey. The PCs chose not to buy, and instead begin working on the new site: but a newbie Black Court Vampire buys the old site off the White Court! The old night club will fail, but the PCs have to decide whether they want to tolerate the deaths that will take place before that happens – do they focus on eliminating the Black Court Vampire, or continue the war against the White Court (who are more vulnerable due to the move).

All were-sharks claim descent from the King of the Sharks and his Hawaiian wife; thus all are of Oceanic descent. Those whose ancestry is insufficient to transform without help can have their powers enhanced by an Item of Power [+0]: sharks teeth from a full Shapeshifter can be implanted into the back of a Mundane islander; the teeth will form a shark's mouth (capable of biting) and grant the power to change. This is frequently done with crippled or aging relatives, allowing them to heal, and is partly responsible for the belief that some ancestors have transformed into sharks when they died.

Although were-sharks hunger for flesh, being limited to the oceans makes it easier for them to avoid killing people. Were-sharks will normally simply announce that they have spotted a shark before they transform, ensuring that the waters will be empty while they are a threat – tragedy only strikes if their warnings are ignored. Were-sharks guide lost ships home, and drive fish into fishing nets. In past times they were the scouts that found new islands to colonise.

Were-sharks become Tiger Sharks, and so are limited to temperate waters: mostly the seas of the Shark King – a triangle of waters bounded by California, Peru and the Great Barrier Reef in Australia. Within these waters they are both protected and bound by the laws of the kingdom, and expected to present themselves at Court on occasion.

During the 19thC large numbers of islanders were 'recruited' as labour by Australia, Canada, Peru and the United States: this trade descended in little more than slavery, to the embarrassment of these nations. Considerable effort was put into reforming the trade – quite successfully; there is nothing like were-sharks eating the worst offenders to reform an industry! The descendants of these workers  still live in these nations; although they often do not know their own ancestry. Very occasionally one is born with the ability to change; more commonly those with contacts in the supernatural community acquire teeth from their distant relatives and rejoin them in the seas.

The were-sharks 'Beast Speech' effect only works on species that they haven't eaten, so a restrained were-shark can easily acquire contacts throughout the Pacific, from remoras and pilot fish up to the powerful supernatural creatures who share the waters with the sharks. Most species, even non sentient fish such as Pilot Fish, are aware that of the limitation, and will use it to determine whether the were-shark is a threat. Unlike most shapeshifters, a were-shark can have improved social skills when transformed – particularly Contacts, Intimidation and Rapport – usable only within the ocean depths.

A were-shark must have an aspect related to their ancestry (although this could simply be a Trouble of an inherited tendency to obesity, common in the islands due to the historical lack of sugars).
Were-sharks improve their control as they age; a young were-shark can only use his supernatural Powers while transformed, over time these become available in human form as well. For every point of Refresh above 9, the were-shark may chose a Power to be available when human.
The exception is Feeding Dependency: a were-shark takes a point of Hunger stress every time they turn into a shark. Feeding Dependency is always in effect if the were-shark requires an item to transform (which is why the ability is only given out cautiously), those born with the ability only need worry about the Hunger while in shark form.
Aquatic, Armor and Claws only apply when a shark, with a single exception: if a were-shark using an IoP is being Grappled from behind, they can bite their opponent (tearing through their clothes to do so).
[-1] Beast Change
[-1] Echoes of the Beast
[+1] Human Form
[-1] Aquatic, [+1] Waterbound, the shark starts to 'drown' if they are not in the water.
[-1] Armour
[-1] Blood Drinker
[-1] Claws
[-1] Cloak of Shadows
[+1] Feeding Dependency, attached to:
[-2] Inhuman Strength
[-2] Inhuman Toughness
[+1] Catch: Tonic Immobility - Toughness unavailable while upside down or on your back.
[-0] Wizard's Constitution

Optional:
[+0] Item of Power - does allow a bite attack under very unusual circumstances; typically only when being grappled from behind.
[-2] Hulking Size (may be bought later, representing natural growth).