I'm considering getting married out of state at a courthouse. Can anyone tell me what all I need to do?

We're planning to go on vacation with MOH and BM and have a fun trip together. We're still going to do the big family ceremony later in the year but want a smaller more intimate "legal" ceremony. I'm just not sure who all to call and how to set it up. I know there is a 3 day waiting period and that's about all I know so far. Help? Suggestions?