Lift sharing is a great way to connect with people, and save the planet at the same time. Club together with work colleagues living in your area, and create a driving roster so that one full car arrives at work rather than several half empty ones. The same applies to parents living in your neighborhood. Instead of doing the Great School Trek every day, you will only be dropping off and collecting the kids once or twice a week, saving you time and petrol.
Source: the Enviropaedia