Cumberland Farms is a chain of convenience stores in northeastern USA. They're quite prevalent in New England, and informally known as "Cumby's." There's a location less than two miles away from my house, so I was glad to test its new SmartPay service and free iPhone app, which lets you pay for gas and groceries will saving a bit along the way.
How it works
To get rolling, first register for free online and link your checking account. Two micro transactions are made and once you've confirmed those amounts, you're good. It only took two days for me.
From there, grab the fr
