Here's a great use of RFID to prevent theft. As RFID costs continue to fall things like this will only become more prevalent.

"That hotel towel you're stealing might have an RFID chip in it"

http://www.engadget.com/2011/04/20/that-hotel-towel-youre-stealing-might-have-an-rfid-chip-in-it/

Maybe they'll start putting it on the shampoo bottles and in the bars of soap as well?

Gary Hoke