Rewards credit cards can offer some pleasant savings that nonrewards cards can't. How much you'll make back depends on the card you choose and your spending.

Before you shop, find out what kind of rewards card makes the most sense for you. Then you can start comparing cards on sites such as Bankrate, LowCards, and Cardratings.com. 

As you examine different rewards cards, look for the "gotchas" in the terms and conditions.