> No idea how you can motivate people. As market driven as the US is, I'm surprised they haven't adopted more EU ideas to keep things tidy. The euro to get a s

> No idea how you can motivate people. As market driven as the US is, I'm surprised they haven't adopted more EU ideas to keep things tidy. The euro to get a shopping cart tends to keep parking lots clean. I went to an event in Germany once that had re-usable plastic beer mugs. 5 euro/beer with 1 euro back for the mug. They were also easily stackable, so if you saw a mug on the ground you would pick up. 5 mugs == free beer. Simple idea using money that kept the event relatively clean given the number of people partying.