Check out this 2GB memory card that is the size of a credit card. You could easily store critical office data on the card and then carry it in your wallet just like a credit card. The data could be used as a second off site back up that is always with you.
It would also be a great way to transfer images or a patient record to a colleague you are meeting for lunch, or carrying around any data you want to keep safe and handy.
Wallet Flash Drive the size of Credit Card 128 MB to 2GB