If you are thinking about a mortgage refinance, you might want to consider many types of mortgage refinance programs. For example, you might want to look into a 15-year fixed rate mortgage refinance. In this plan, your mortgage payments are somewhat higher than a longer-term loan, but you pay substantially less interest over the life of the loan and build equity more quickly. (Of course, this also means you have less interest to deduct on your income tax return.)
You also might want to consider a mortgage refinance if you have an adjustable rate mortgage with high or no limits on interest rate increases. You might want to switch to a fixed rate mortgage or to an adjustable rate mortgage that limits changes in the rate at each adjustment date as well as over the life of the loan.