When you move, it’s often important to report your change of address to the United States Postal Service or you risk missing important mailings like credit card and utility bills.

The federal government gives us the right to a free credit report once a year. However, there’s no government mandate for annual free FICO Scores — the credit score lenders most often use to approve credit applications. You may be able to receive a free FICO Score by signing up for another subscription service, but that isn’t always a good option.

It’s important to note that repairing bad credit takes time and there is no quick way to fix a credit score. In fact, out of all of the ways to improve a credit score, quick-fix efforts are the most likely to backfire, so beware of any advice that claims to improve your credit score fast.

So you have some extra money in your pocket and you’ve decided to pay off one of your credit card collections early. You know that credit scores are extremely important so your goal is to pay off the collection that will yield the most credit score improvement — the “FICO ROI” (return on investment).

Credit Scoring is a mathematical formula that generates your bill payment history and general financial habits into a tidy package used by lenders to help decide how worthy you are of a loan and how much it will cost.