We do this with one of our friends. One night a month we watch their son for an evening so they can go out and one night a month they watch our girls. We've been doing this for over a year now and it is great. We try to time it so that everyone is home for bedtime since that's when our kids start to get weepy if we're not there. It has really become a time that everyone looks forward to. The grown ups are excited by a night out and the kids are excited for the playdate.

Angel