Hopping from card to card to get the lowest interest rate can be appealing, however you can risk damaging your credit rating. Every time you apply for credit, lenders will check your credit history. When they pull your credit report, it is recorded as an inquiry and will stay on your report for two years. A lender considering you for a loan will look at how many times you’ve applied for credit and possibly draw some conclusions. A large number of inquiries occurring in a short period of time may be interpreted as a sign that you are overextending yourself or are applying for lots of credit because of financial difficulty. So, it may make sense to take advantage of the best of the offers that can guarantee a low rate for a long period of time. But if you’re planning on applying for a large loan, such as a mortgage, soon, then you may want to consider forgoing any additional low-interest cards in the name of your credit rating.