Chances are, that card carries a high interest rate you'll be forced to deal with if you don't pay off your balance each month.
Try this: If you must charge your purchase, use your general-purpose credit card, says Cunningham. If you can't pay off the balance, at least you'll pay a lower interest rate. Limit the total number of credit cards you have to just two, if you can: one you can pay off each month and one with a low interest rate for those large purchases you'll pay back over time.
