Parents can spoil themselves when traveling with infants or toddlers by renting baby supplies, such as cribs, jogging strollers, gates, baby rails, rather than lugging them through airports or hassling with them en route.
Baby's Away is a site that seems to simplify family travel involving young kids. While it may not solve all your problems ("Are we there yet?") perhaps it can be another stress-reducer for traveling families. You can rent supplies from numerous metropolitan and resort locations throughout the U.S.