For many, getting a credit card is the first step toward building a strong financial future. When used responsibly, it’s a powerful tool for earning rewards, security and building the credit history you need for major life milestones like a car loan or a mortgage. But before you apply, it’s important to understand the terrain you will be navigating. A credit card isn't a magic piece of plastic that makes all your dreams come true; it's a financial tool and commitment that comes with its own set of rules and rewards.