Honestly, as much as I love FFXIV, the Glamour system seems overly complicated, to me, and I think it's the biggest reason that inventory-space is such an issue.

I've said it before, and I'll say it again; FFXIV needs to adopt a similar system to Guild Wars 2's Wardrobe.

Instead of having to store all that data on every single character, you instead "unlock" items' appearances on the Account-wide level, merely by equipping them. I would still keep Job restrictions in place, obviously, and I'd even be fine with keeping level restrictions around.

By utilizing this kind of system, it removes the need to hold onto EVERY SINGLE ITEM you like the appearance of, because let's face it, EVERYTHING looks good in this game. It would take some work to implement, but the end-result should be more convenient for players, and presumably less taxing on the servers, as (most) players wouldn't be so starved for inventory space.

Plus, it would be awesome for when you acquire those items with Gender-specific variants, to be able to unlock the corresponding clothes for the opposite gender (namely, the Lightning Returns clothes).