If you have high-interest credit card debt, you may believe another credit card is the last thing you need. But a certain type of credit card debt could help your situation — if you use it the right way. This type of card is a balance transfer card. How balance transfer cards workEach balance transfer credit card has its own unique introductory offer you can use to your advantage. The bottom lineAnother credit card may seem like the last thing you could possibly need if you're in debt, but a balance transfer card could help you save money with the right mindset.