Per a convo in guild... what about armor mannequins that you could use to track how many pieces you have of a particular set? Tanks and healers mostly have spreadsheets for doing this, but even DPS keep trial/dungeon gear in case it comes back into meta.
Would probably not be able to display dyes, just the default armor color/style, but I'm ok with that. Imagine being able to walk your armory and say "oh, CoH is pledge today and I need Ebon greaves!"
Weapons racks/plaques would be good too!
@ZOS_Adrikoth @ZOS_JessicaFolsom