How much is a marriage license?

My fiance and I decided against a wedding. We're going to get our marriage licenses and go to a courthouse and get ,married that way. We're just so tired of family giving us advice, telling us all we're doing wrong...so we're going to go and just do it. I am trying to find out how much the whole thing will cost, both the licenses and the marriage itself, what exactly we have to do, and where we have to go.