Now you can pay by simply using your voice. Voice Pay: Pay by Voice: "To use Voice Pay, consumers first need to set up an account. This one-time enrollment process involves calling a Voice Pay number from a cell phone and establishing a user name and password, as well as providing credit-card information. The consumer will also be asked to register a particular cell-phone number and give a voice print by repeating a series of randomly generated numbers."
P.s. Make sure you do not day-dream of shopping. Before you know, your account deposits will follow whatever you say before you wake up :-)