4 Rules for Managing Credit Cards

• Pay the balance in full and avoid interest. Beat the card companies at their own game.
  

• Never pay late, if possible. Pay by phone, or overnight a check if necessary.
  

• Before signing up for a card, assess it carefully and weigh out all the terms and fees. And remember just applying for it can affect your credit score.
  

• Use higher-interest rewards cards for small purchases and a low-interest card for any big buys.