A rewards credit card lets you earn cash back, points or miles when making purchases with that card. Beyond rewards, these cards sometimes come with additional perks like travel and purchase protections.

Rewards credit cards are worth it as long as you maintain good credit habits, such as paying off your balance each month. When used responsibly, rewards credit cards can save you hundreds of dollars annually.

Credit card rewards usually don't expire as long as your account is open and in good standing. However, if you close your credit card, you could lose your rewards or have a certain amount of time to redeem them. It's also important to read the fine print to be aware of every caveat because each rewards program is different.