Pretty much the same as Vhal on this one, but maybe with a little less organization. I've started using my Sort-It App more though so I can at least have a record (generally) of what I have and don't have -- toys/merchandise/swag is where I get lost though. Luckily those are usually a little easier to remember if you have them or not.
Maybe after the next relocation I'll get a chance to open up things and display them properly.