Car sharing also transforms driving into an intentional activity. In Europe, car sharers typically reduce their driving by as much as half. According to Russell Martin, general manager of CarSharing Portland, car sharers in the US are so far driving even less than their European counterparts. A few friends and an answering machine. If you'd like to aim higher, there's plenty of information around.
Many green solutions pay off slowly, or solely in terms of benefit to the Earth.
Dear Concerned Mom, I used this recipe with great success with my daughter when she was young. Fortunately, the soap doesn't taste great to toddlers, so they won't spend much time trying to eat the paint. Dye the fingerpaints with natural fruit and vegetable dyes for beautiful and mellow colors. Place cornstarch in a bowl and stir in the cold water. Grate shavings from a bar of pure soap.