I dont carry a bag or back pack, but in my pockets I carry a large assortment of change/junk I find on the road I deem small enough and interesting enough to keep, my cell phone my keys to my apartment and my wallet which consists of at the moment my washington mutual credit/ATM card 6 bux in cash, My State I.D. , my Union Bank of California Credit card, My Library card, My Albertsons Prefered club Card, a variety of bussiness cards of people I know and don't know, My Ralphs club card, My Costco club card, my Vons Club Card, and a Cracker Jack prize card featuring BaseBall Legend Catcher Roy Campanella.