here's my two cents for what is's worth:
1) cars, plane, trains, buses and all the vehicles should have a dynamo converter, using the pedals of passengers to gather energy and saving fuel. A discount should be applied to the fastest cyclers, who are contributing more to the accumulation of energy. Just imagining work commuters panting in the metro makes me eager to patent this idea. And no more hitch-hikers left behind!
2) differentiating rubbish here is (nearly) useless: you separate paper from glass from cans from plastics from all the rest, put it outside, and later the collectors throw everything in the same bin (they say "we will differentiate later"). There are tools available to make you own "homemade paper", based on recycled paper. PaperChase sells is, still at some astonishing price. I'd say: diffuse a converter per each family, and let them use their newspapers to create recycled toilet paper. Extra-fun when it comes to your most hated politician... And no more wasted paper pulp!
3) where we live I can "see" some 15 wireless networks, of course all of them encrypted and secure. A better approach would be: I use it when I use it, you can use it when I don't use it. Very similar to the SETI@home project (have you got extra CPU cycles on your pc? donate them to track extra-terrestrial radio messages!)
