Speaking of Bag space, Hats!

The math on the number of combinations of gear slots, bag spaces, and the server space needed to store it all is unknown – but would be a high number. Extraporlate the variance when reforging and enchantment is added.

Haberdasher by The Trenches (trenchescomic.com)

I liked this Cartoon and the Trenches is worth a read.

We can show/hide Hats in WoW, perhaps this feature is even better – add many Hats.