Many of us return our plastic bottles and cans. Noticeably fewer recycle their glass. Maybe that's because we don't get any money in return, as we do for cans and plastic. Can we change this attitude by making recycling glass fun to do? So you are not just rewarded with a good conscience, you also get a smile. See the results here.

”Take the stairs instead of the escalator or elevator and feel better” is something we often hear or read in the Sunday papers. Few people actually follow that advice. Can we get more people to take the stairs over the escalator by making it fun to do? See the results here

To throw rubbish in the bin instead of onto the floor shouldn’t really be so hard. Many people still fail to do so. Can we get more people to throw rubbish into the bin, rather than onto the ground, by making it fun to do? See the results here.