Paging all airlines: Gulf Air is ahead of the fleet with its Sky Nanny program. Trained caretakers ferry families on and off planes, schedule the kids' meals, pass out goody bags, and babysit during nap time—parent nap time. Nannies are on board all long-haul flights, making the carrier an ideal way to get to locales like Sydney and Athens. How about that, United?888/359-4853;