No Checks. No Cash. No Fuss?

Leigh Anderson is getting rid of her cash. She uses a bank-issued debit card to buy everything from groceries and gasoline to stamps at the post office. "I used to keep spare change for coffee, but the 7-Eleven just started accepting the card," says the 33-year-old education consultant. She shuns checks too, having signed up for a new computer service called ScanFone that lets her pay her credit-card, utility and 17 other bills in just 10 minutes by tapping a few numbers on the keypad of a high-tech telephone that sends instructions to the company's central computer. "I guess you don't...