# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2011-11-21 14:04:56 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/138618903512358912) Doh uses RFID and Arduino to help you remember your wallet, continues search for the 'Any Key' http://t.co/87IY0Y79 via @engadget