My husband and I get out without the children twice a month. But I have older children and don't have to worry about a babysitter. We go out for dinner or to a movie. The 1st hour is spent talking about everything BUT the children.
Sometimes we go out for just coffee and to talk, other times we go to the movies or dinner. We used to go out once a month until our DD got sick. Sometimes when we couldn't get a babysitter I would make dinner of the kids and put them to bed early, then I would make a special dinner for us, we would get all fancy with candles and we would just talk, after dinner we would either play cards or a game.
We might start doing that again because right now we can't really go out much.