Another thing to keep on your flash drive is a description and list of serial numbers to expensive devices/things you own. Computers, Ipod, televisions, collectors items, ect. It comes in handy if you ever get robbed or if your dwelling burns down.
First, it helps you figure out what is missing or destroyed. Second, it makes it easier to make up a list you can give to the police to help get your stuff back, and/or to your insurance company to maybe get some kind of reimbursement. If you really want to go nuts you could even scan copies of receipts on there along with the descriptions and S/N.