I was thinking as I look at all these "treasures" that say "sell to a merchant for gold" (obtained from thieving and now antiquities), some of them sound quite interesting. So I was imagining a new kind of furniture piece that would act as a container but which would display the things you put in it, perhaps specifically just for these 'treasures'. I can imagine there are people who would try to collect one of each of all the treasures, or save a few that go well with their character.
Along with this, I was thinking from a role-play point of view, it would be nice to have another tab in my inventory for 'personal items' and then the ability to mark things as such. Perhaps this is in the realm of addons, I don't know, but despite inventory issues I think some people, like myself, still carry around a few sentimental items that sort of add to the feel of the character, such as quest rewards given by favorite NPCs or certain treasures that just seem like something this character would carry - like an Ayleid Alphabet Pocket Translations, or a Bone-handled Grooming kit, or a Basalt Table-game set.