There may be no better way to encourage a positive attitude toward family fun than by integrating each member into the activity at hand. Headed out for a picnic? Let your kids set the menu. Hosting a game night at home? Ask your spouse to be in charge of the music. And if you're taking a road trip, put each person in charge of some critical task, such as navigator, snack maker or DVD operator.
Delegating responsibility can be difficult for someone who's accustomed to doing everything for his or her family. But doing so empowers those involved to be a part of the activity rather than just being along for the ride. They'll also be much less likely to complain about it.