Before your first kid-free trip, try some short practice runs. You want to help children gradually learn to tolerate separations, Erickson says. Try going out without your child a few nights a week. If that sounds unrealistic, an occasional overnight visit at Grandma's or a few afternoons with a babysitter can also help prepare your child for longer separations. And of course, if your child's in day care, he's already gotten used to being away from you for periods of time -- and he's learning that when you're gone, you eventually come back.