Used wisely, balance transfer credit cards can be used to eliminate credit card debt without paying a dime in interest, fees, or other finance charges. After reading the fine print of many of the industry's leading cards, we at The Motley Fool have discovered some particularly attractive cards for people who want to pay down credit card debt.The three cards below are some of the best picks in balance transfer cards because they have lengthy 0% introductory periods on balance transfers.