Snacks
Healthy snacks is the key to keeping kids belly's full. If you load them with junk chances are they will want more junk and end up in the bathroom regretting it. Fruits and popcorns or nuts and crackers will hold them until the next food stop!
Car Games
Once a kid starts to get bored your road trip is going to be chaotic. Best way to keep them entertained is to have games ready like the license plate game! You can also bring cards and maybe even games on the phone could be some type of excitement for them.
Movies
Everyone knows a good movie can make the time fly by. Whether its on your phone, tablet or you invested in a car tv a movie is the best way to keep them quiet and entertained while you're driving! Pick movies that you know already excite them and movies you know they haven't watched but have been dying to see. Redbook has the latest movies and is for sure your safest bet, but Netflix can work just fine too!