Back of the Building Advertising

While going through a Starbucks drive through in Elk Grove this past weekend I saw this add for a dentist office. Now you usually don't see any advertising on the back of buildings, but since the dentist office was right next to the Starbucks they put one of their advertisements on the back of the building so when people drive through the Starbucks drive through they can see it. 

This is just another way businesses are trying to break through the clutter. Instead of advertising their name on the front of the building they advertised on the back, because they know that the Starbucks next door gets a lot of customers that will see the ad, when they drive through the drive through. 

I find this such a simple but genius idea.