one use Discover Card number for you. The program tells Discover whom you intend to pay (but not how much, I believe) and Discover creates a card number and inserts it in the proper space. You can then send it unsecured because only the merchant they already have associated with that particular number can "use" that account number. SLICK!!!

Agreed. When I first read of the one-use credit card number, I was very impressed, and can only hope that Visa adopts a similar scheme soon.