Involve older children with the navigation or the keeping of the mileage or expense records. Younger children can amuse themselves with coloring books, picture books or soft toys. Playing cards, simple puzzles and favorite song or story tapes are good bring-alongs. Rather than carrying a lot of games, play games that count or list license plates, roadside signs or categories of things seen along the highway. Use the information on the maps as a basis for games or quizzes about the area through which you are traveling.
Some children are prone to car sickness, which can be aggravated by cigarette smoke or strong odors.
Keep the car cool and well ventilated. Activities such as reading, particularly in the back seat, also can contribute to the condition. If the problem is chronic, you may want to consult your doctor regarding motion-sickness medication. Take along a pillow and blanket for nap times .