I heard about this great game to play while traveling! The instructions are here.
Basically on your trip you look for cows. When you see a group/one roll down the window and yell "Hey COW!" you get one point for every cow that turns and looks at you.
This is going to be one of those games that could start a traveling tradition. I can see Atlas yelling at cows where ever he goes.
It may have spin offs like hey dog, cat, horse, or hey you! How fun would it be to yell "Hey you!" at the mall just to see how many people look; one point per person.