Credit Card Consolidation

I use to think that it was a really clever idea to have different credit cards for different companies. I could walk into any department store and I would have a credit card for it and I would get an extra discount off of my purchases. But now I have learned a hard lesson for my thinking that having so many cards was a good idea. I now have a lot of debt on different cards and I need to do a credit card consolidation. That way all the different balances will be on one card with only one interest rate to work with.