Do I save the money, pay off bills or put towards the mortgage?

I have recently received money from a deceased relative. We may be moving in the next year to a more expense area of the country (D.C). Do I save the money in the bank for moving time/closing costs for new home? Do I pay off bills and lower our debt ratio to try to get a better rate on a new house? Or do I put it towards my current mortgage to increase equity when we sell our home? I don't know the must efficient way to use the extra money.