You don’t need to fill up the gas tank to enjoy the great outdoors. Just pitch a tent in the backyard -- or even sleep under the stars. Hunt says the ground rules are simple: The telephone goes off the hook, and computers, cell phones and electronic games are safely stored in a locked room or closet. Check out books on the constellations from the library, download song lyrics to camp songs and, of course, cook all your favorites -- hot dogs, baked beans, s’mores -- over a fire ring or barbecue. “You can cheat and use the bathroom in the house, but that’s all,” says Hunt.