For example, if you transfer $6,000 in credit card debt to a card offering 0% intro APR for 18 months, you could pay off the full amount by making $333 monthly payments with no added interest charges.

After clearing the $1 trillion mark last spring, credit card debt has continued to mount, rising 4.7 percent in the third quarter to $1.08 trillion, the Federal Reserve Bank of New York reported.