Perhaps you’ve heard the advice to pay off credit card debt first when getting your finances in order because it’s a “bad” form of debt. While this type of high-interest obligation can certainly drain your bottom line, you can use credit cards to your benefit and even return some money to your pocket. Enter cash-back credit cards. These types of instruments are bank offerings that do just what they advertise — giving you cash back when you make certain purchases. Essentially, you’re paying a sale price on things you buy rather than paying full price. Here are three of the best to try.