Given the number of Americans who abuse their credit cards, you might think that opening one is a good way to damage your credit. But actually, your credit card can help you boost your credit score, provided you use it correctly. If you’re careful to make each minimum payment, avoid carrying a balance, and keep your credit utilization low, you can turn a bad credit score into a stellar one over time. Here’s a quick guide on how to build credit with a credit card — even if you’re starting out with no credit history at all.