Some people are able to control their spending habits while using a credit card, and pay off their balance each month without penalty. If you are discipline enough to do so, there are advantages to using a credit card. With today's competitive market, some credit card companies offer reward programs (such as a percentage of your purchases) and perks like extended warranty periods for appliances. When handled properly, credit cards can also help you build your credit rating, should you decide to get a loan or mortgage in the future. Combine these points with having an interest-free loan each month, having a credit card is worth considering.