Tap a state when you see its plate. All fifty is the drive of a lifetime.

Find each letter on a sign, a truck, a billboard, in order or not. Q and Z earn bragging rights.

Road bingo. Tap it when you see it. A line wins; the whole card wins dinner.

Everyone in the car gets the same word except one. Add names, then pass the phone around; each person taps to see their role and passes it on. Then go around saying one word each.