If you’re ever on a long road trip with friends, a great time-killer is The Alphabet Game. This is where you all look out the car windows and look for words on billboards, business signs, passing vehicles, and even license plates to try and complete the alphabet. Each successful observed word must start with the appropriate letter of the alphabet, and then you advance to the next letter. No one can use a word that somebody has already spotted, so alertness is favored.
X and Z are particularly hard, but Dairy Queen will always save your ass for “Q.” The above photo may be a fake, but it would help if someone was stuck on any of those dreaded letters, particularly X.
The Litter Box 
X is easy… EXIT! J and Z are among the hardest.
“Alertness is favored”
We played this when I was a kid. Now that I’m an adult, I wonder what the hell the adults were *thinking*, putting us up to this. Nobody wants their kids to be alert on road trips. Asleep is SOOOO much better.
How is X hard? It’s at every “exit” or “next”.
In Michigan we play that it has to begin with that letter, not just contains it.
Yeah, it has to either start with X or be a solitary X.