Cash Back
  
Credit cards that offer cash back can be a good deal for consumers, assuming the interest rates they charge are reasonable. A type of reward program, the credit card company will offer a small percentage of what you spend on the card, usually from 1% to 5% (if you're getting 5%, good for you!) in order to help keep you as a loyal customer.
Most people use the cash back to pay down their credit card balance, but it can also be deposited into your checking account or a check sent through the mail. There is usually a threshold to meet of about $25 in order to request the cash back. But if you're carrying a credit card balance, the whole idea of cash back on this and cash back on that is really just a marketing gimmick. How about NOT spending hundreds of dollars on eBay each month...and how about paying off your card and like NOT funding jets for American Express brass? You need the cash back more than they do.