Every Time You Swipe Your Card

People may or may not know, but every time someone uses their debit/credit card for a financial transaction, that (business) is charged a fee by the card provider. American Express, Visa Business, and Discover charge the most in fees. This is why many places do not take them as a form of payment. If you go here you can see how much you are "charging" in fees for various items, from a pack of gum to a plasma television.