The very first thing that came to mind was “Wake up and smell the coffee!” Bold, black lettering on a white background, no adornment. For some, it might serve as a reminder to head to the nearest Starbucks or Dunkin’ or some other favorite coffee stop. For others, it might be received as a conversation starter, a prompt all its own. Or maybe derisively sneered at in puzzlement.
If it was mine to use on a regular basis– and it was one of those digital models– I’d have to line up a daily bit of insight. If it was a more traditional board where someone had to climb up and “change the wallpaper,” it might be a weekly offering of some nugget of wisdom, maybe a short joke or something open-ended that would keep folks watching for a follow-up.
If it was mine to use only once, that would demand more thought. A freeway billboard is likely to be seen by thousands of people on a daily basis, if it’s located in the right spot. So, whatever went up would have to be concise, readable without being a distraction, and thought-provoking. Maybe a picture, no words. A picture of a flower growing in the middle of a paved road. I’ve always liked that image, for some reason.
Maybe something like, “If you find something beautiful in someone, tell them.” Or “Opinions don’t define your reality.” Or how about one from Albert Einstein: “Great spirits have always encountered violent opposition from mediocre minds.”