Stop screaming at your kids! Road trip clips: One clip for each kid. If they are sweet, clip stays up, if they are not, clip comes down. Everyone with a clip on the visor gets a treat at the next stop (or whatever reward idea you like)
DIY Road Trip Binder for kids! With so many free printable traveling games online a travel binder is a great idea to occupy children while traveling and acts as great storage for other items you can include.