When I travel by land, I like to forego maps and just head for the hills on some winding two lane blacktop in the general direction of my destination. I enjoy the possibility of getting lost and having an unexpected adventure. But I’m not crazy. In my trunk were all paraphernalia in case I really did get lost: extra clothing, thermal pup tent, thermal blanket, and energy food. But this won’t do with children.
Make sure all objects in your car are secured; battened down. Flying objects such as books, vanity cases, etc., cause serious injuries during relatively simple collisions.
Never, ever substitute caffeine for sleep.
Hydrate, hydrate, hydrate. Water is best.
Have some hard candy handy for when the kids’ sugar levels drop, usually in the afternoon. Otherwise, you may experience unnecessary drama which will sap your energy.
AAA Trip Tiks are an amazing invention. They are map books especially tailored for your individual trip with up-to-date info on road construction and conditions, parks, hotels, motels, restaurants, gas stations, rest areas, etc., opening and closing times, and if they actually still exist or not. Mileage and travel times are noted as well. You don’t have to be a member of AAA to get this service. Check the site. I’ve not used them for a few years, but I would imagine they are able to do all this online in realtime via your laptop these days. Better and more reliable than your car’s GPS.
Try to get the kids out for a nature walk, or some interesting physical activity at least once a day while on the road.
Four to five smallish, healthy meals—not snacks. A sandwich, a soup, a salad. Fruit, cheeses and nuts for snacks. This is especially important for the driver. A heavy meal, especially after four or more hours between meals, can make you dangerously somnolent.
Sleep and hydrate before the trip and make sure to get at least six hours of sleep every 24 hours on the road.
Enjoy yourselves.