Hmm... My
Protu pendant (a thing you get by going to a certain camp) is one more item I can't be without. I'm even physically attached to it: it's in my hair.
I'm actually very dependant on many items. I could probably remember where I got each of my many CDs, even my childhood toys. It's hard for me to part something I have no use to, like a toy car. Do you have this kind of Uncle Scrooge habit?
(I'm sorry if I'm going off topic.)