I use to collect state coins or rare kinds of rocks. I had one that I got from a cave that would glow in the dark. Don't worry, it wasn't radioactive (I think). I am not in to clutter at all. I actually just took something downstairs because I felt like it was taking up too much space in my bedroom. I have a small closet where I will store stuff I don't know what to do with or keepsakes like cards I get from people and letters. If I had a smaller bedroom I'd probably trash all of those things so it wouldn't be bunched up some where or get a chest for it to put under my bed.