You have probably received those credit card offers that include a promotional interest rate that sounded too good to be true. These are often at 4.9%, 3.9% 1.9% or even less. Your first thought probably was "What is the catch?"

There usually are catches involved in these interest rates. However, if you read the small print and are diligent, you may actually be able to benefit from these rates. You are most likely able to gain from this if you have a line of credit and at least one other credit card.