You have done it.  Someone at the grocery store asked "debit or credit" at the cash register as you swiped your debit card, and you have thought, "Who cares?" 
Helen interviews a Denver Community accountant, Alan,who tells you why it matters.  Then, armed with the facts, you can make the choice you want to make, with confidence, everytime you're asked that question.  Plus, you can tell all your friends & look super-smart.