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How to use zero percent interest credit cards to get out of debt
Review all of your existing credit card statements.
Make a comprehensive list of how much you owe, on which cards, at how much interest.
Whether or not you include other types of debt, such as mortgages or car loans, is up to you.
As a general rule you save the most money when you concentrate on paying off highest-interest debt first, and the less revolving debt you have the better your credit will appear. That usually means paying your high-interest credit cards off first.