Glamour Outfits is a good direction, but...

[Iscah]

No, you are correct. But the glamour dresser does already. Your inventory does already. Hell, it's no different than the achievement log painstakingly monitoring every single digit as you creep to 10,000 kills or 1,000 fates or whatever. It all ends up the same in the backend.

Yes, those things do track whether you own items or not – but they have a limit on how many things they can track.

The inventory and dresser can track what you own, but can't track and show every item at once.

The Dreamfitting menu can show every item at once because it doesn't need to track what you own.

Those two facts do not add together to equal "the dresser is already capable of both showing and tracking an infinite amount of items".

[Ritsugamesh]

Yes, those things do track whether you own items or not – but they have a limit on how many things they can track.

The inventory and dresser can track what you own, but can't track and show every item at once.

The Dreamfitting menu can show every item at once because it doesn't need to track what you own.

Those two facts do not add together to equal "the dresser is already capable of both showing and tracking an infinite amount of items".

Do they NEED to have a limit though? Or is it just an arbitrary number they choose?

Currently they don't show everything, that doesn't mean they can't in the future.

Again, do you have a source for that claim? The dreamfitting menu does show every item at once. I don't recall seeing a popup saying 'this is possible because we don't need to track things'. Nor do I ever recall a statement supporting that.

You are adding your own limitations to the systems we have. We're like 90% of the way there with multiple separate systems in the game at present. It isn't a leap to suggest they can be put together to make something work. This is also backed by the fact that other games have achieved this very thing nearly a decade ago.