Credit cards are a completely different ball game than they were in the 80's. It was once the case that the only use for a credit card was simply to be able to buy something and pay for it later. Now though, competition between the credit card companies is so stiff that they are offering all sorts of rewards to try to attract more clientele.

Credit cards compete for your business by offering incentives such as low introductory interest rates or rewards to new customers like free flights and cash back. These rewards are generally based on how heavily you use your card. There's a trick to these incentives and we'll show you how to take advantage of these incentive programs.

Rewards cards: You should shop around for the best deal you can find if you decide to go with a card which comes with rewards. Find rewards which you will actually use; for example, free flights as a reward makes little sense if you don't fly often or do not plan to charge a lot on this particular card - these cards often require a lot of spending to actually get the rewards.

Shop around a little and find a reward that works for you. Cash back rewards are very popular. Be sure to read the fine print before you apply for the card. Ask the rep if there is a limitation on the amount of rewards you can claim. Some card companies will only allow you to claim a specific amount and once you get there, the rewards disappear.

Additionally, ask if there is a time limit on the rewards - they will sometimes only be valid for a limited time and will expire if you don't use them.

If you are thinking of applying for a gas station reward card, be sure that there is one of those gas stations in your city first.

Low introductory rates: This one has a lot of possibilities. For instance, let's suppose that you have a credit card which has a 19% APR (annual percentage rate). You make a few small charges and have a balance which can be paid off easily within six months. Then you find a card with a one year 9.9% introductory APR for new customers. You could get this new card, transfer your old balance to it and pay it off much more quickly while saving a substantial amount of money. You could then either cancel the old card or save it in case you ever need it.

Keep this in mind - when the credit card companies compete, you come out on top. Don't be afraid to shop around for the best offer - the credit card companies want your business. You might be surprised by the deals you find!

Do your research before you sign up for any cards - you stand to get some great rewards and perks this way; just don't rush into anything, there might be a better deal right around the corner.