At Bank of America, we are committed to providing you with sound advice and financial tools to help you build and maintain a good credit history and to reach your financial goals. When you use your Bank of America credit card responsibly, you can begin to establish a credit history that will benefit you now and in the future. Before you start using credit cards, it’s important to fully understand what a credit card is and how it works. How you use and manage your cards will have a big impact on your financial future. What exactly is a credit card? A credit card is more than just a piece of plastic