"Don't let your kids drink too much water, especially if you are stuck in traffic," Frey said. "It won't be worth the whining if you can't get to a rest stop."
Break Out Those Maps: Don't laugh too hard. In these days of GPS-assisted trips, those good old-fashioned maps can be a great help. Frey said parents can show their kids where you are, where you've been and where you're going.
"It helps show them that you are making progress, no matter how slow," Frey said, adding that the message can be: "It will be worth it when you get there."