I tend to switch credit cards quite frequently in order to take advantage of balance transfers deals that offers 0% interest periods. I tend to look around at comparison websites in order to find the best credit cards rates and current deals. Cardguide.co.uk is quite a useful website because it allows you to compare various types of cards so if for example you are looking for a cards that offer a balance transfer you can view all of the available credit cards and the current rates side by side to see which one offers the best deal for you. It certainly makes comparing the rates a little easier.