Can you get more people to take the stairs if it's made fun rather then taking the escalator or the elevator. Take a look at the Piano Staircase and see for yourself
How about getting more people to throw away their trash
I like the idea of a Bicycle Bus submitted by Dobromir Hristov. Her theory is many people take the bus even for short distances rather than walking. So if you put peddles underneath every seat you would get your daily exercise in and reduce pollution.
Any thoughts on how we could make cycling more fun to get people to cycle more? That is one reason for the name change to Cycling Made Fun