I would pack a bag full of new toys (cheap though, like from the dollar store) and in addition to the toys, I would put a bunch of things in the bag that he never gets to play with that aren't toys. By that I mean things that are typically no no's, for example, my baby loves things like remote controls, cell phones and things of that nature. Usually these are things that they want badly but never get to play with. I would dig out an old remote control, dead cell phone and broken camera and give him one of those when he gets super bored. I know my daughter would sit forever and play with a remote control if I gave it to her like that. They are way too young at 14 months to take any interest in movies, so I wouldn't bother with that, it just won't help. I would have plenty of snacks also. I would suggest that you sit back there with him a little of the time. I also would suggest feeding him his meals while you are driving, versus when you stop. You know he will be happy while he is eating meals. And even if you stop to feed him, he will have to sit still, so you might as well make driving progress while he eats. When you do stop to let him play, you should all eat your own meals while he plays, that way you don't waste any time. That 6 hours will go by pretty fast though. I would probably put him in the car hungry and feed him breakfast in the car, something that he can eat with his hands that you hand him. Then he will probably play a while with the crazy new thing that you give him, fall asleep for a while, you can then feed him again, maybe little meat sticks or something, then give him another crazy thing to play with, he will fall asleep again and you will be there before you know it. You will probably only have to stop once. Just keep him strapped in his carseat!!!!! When I see people with their kids out of their carseats, I call the police with their license plate and follow them until they get a police officer there! It is so dangerous! I am sure you are more responsible than that, but there are plenty of people out there who let their kids out of the seat while driving. If you need to let him out of the seat, stop the car!