Road Trip Snack Boxes for Kids - I made these for this summer's trip and it was a huge hit. I found the boxes in the craft section at Wal-Mart and included a variety of salty and sweet treats. Then on each leg of our trip (divided up into 1-2 hour increments), they could choose one or two things to eat. Very convenient on us as parents and the kids love it, too.
DIY Car Emergency Preparedness Kit List - be ready for anything from a spontaneous decision to spend the night at a friends, head to the beach or an unexpected emergency like having the car break down with kids in the car or getting stung by a bee