Does anyone else use this site? You type in the serial number on your paper bills and if anyone else has entered them you can see where they've been. Daniel has been entering bills like a madman and we haven't had any that have been previously entered yet. Maybe some of you would like to check it out...the more people that do this the more likely we'll see money travel around the country (or the world)!
I had 2 bills with a stamp on them to go to that website. I did, and they had just started out the week before, nothing too exciting. I registered and linked to them, but no one has updated their whereabouts. It is a fun site.