Using public transportation, carpooling, biking or walking can save energy and reduce carbon pollution on your way to and from work. Leaving your car at home just two days a week can reduce carbon pollution by an average of two tons per year.
Do you hate getting stuck in traffic jams? It may seem bold, but consider telecommuting (working from home via phone or the Internet), which can reduce the stress of commuting, reduce pollution, and save money. Even small life changes, like combining your errands and activities into one trip when using your car, make an impact.
More tips: http://www.epa.gov/earthday/actonclimate/