Urinal targets and other helpful nudges

The always-good GOOD magazine has a short list of unusual nudges to get people to do the "right thing," from reducing teenage pregnancy to quitting nail biting. From GOOD:

Stop men from peeing on the floor.
Authorities at Schiphol Airport in Amsterdam have etched the image of a black housefly into each urinal. It seems that men usually do not pay much attention to where they aim, which can create a bit of a mess. But if you give them a target, they can't help but try to hit it. Similar designs have been implemented in urinals around the world, including mini soccer goals, bulls-eyes, and urine video games (seriously). Do they work? Since the bugs were etched into the airport urinals, spillage has decreased by 80 percent.

Tricking People Into Doing The Right Thing (GOOD)