I've never EDC'd a thumb drive, but I recently picked one up from a recent killer deal at BestBuy. Of course, you always see people with them on their key chains or pouches. Just curious what data you might keep on that USB stick. Obviously, people probably shouldn't be keeping very sensitive information on there, but how about: A text file with emergency contact numbers in case you're down on your luck and someone finds you. Work files in case you're going to a no-Dropbox environment. Maps? I dunno.