But time and again, when they get to the cash register and see her "cash only" sign, they sigh, put their items back and walk out of the store. She's missing out on untold sales opportunities.

The past couple of weeks, I experimented with the "cash-only diet," ditching my Discover card and reverting to cash for everyday purchases. Research shows that people spend significantly more when ...

For thousands of Michiganders, their power company will remain a cash-only business. DTE Energy, the state’s largest electric utility, may continue its unique policy of forcing certain customers ...