We have meals together when possible, play with the kids, periodically watch our favorite shows together: Malcolm in the Middle, Arrested Development, and Third Watch (taped to save time).
We make it a point to go out on 2 dates, at least, a month with each other without the kids. We go Grand Prix racing, billiards (we're both pretty good, so it's a good challenge), movies (rarely this, though), all types of concerts, Broadway or other plays, eating out, making out in the car, talking in some quiet location, parties, dancing. It's nice to spend time without the kids.
Over the last 3 weeks, we saw Bela Fleck and the Flecktones (really good) and went to a semi-formal Holiday Enchantment. It was nice being super dressed and made up. We both looked great and had a pretty good time dancing, etc.
We do a lot of stuff as a family. We go to museums, train rides, Science center, arts festivals, carnivals, movies, the park to play, walking all over the place, day trips, the zoo, very seldom the mall, out to eat, visiting people, Nursing home to visit the friends we've made over the past few years, lots of other things.