At the Office | Inside the Home | In the Kitchen | On the Road   Cut back on drivingby walking, biking or taking public transportation.  To find Bay Area transit routes and transit agency and Amtrak bicycle policies, please visit www.bicycling.511.org Start a carpoolwith your coworkers, classmates or friends, or sign up to carpool with people in your area for free at www.rideshare.511.org Keep your car tuned up and your tires properly inflated. Giving your engine a tune-up can improve gas mileage by more than 4%. Replacing a clogged air filter can boost efficiency by 10%. And keeping your tires properly inflated can improve gas mileage by more than 3%. When purchasing a car, choose a fuel efficient vehicle. To discover advantages clean vehicles offer, including price incentives, visit www.driveclean.ca.gov Fly less and purchase "Carbon Offsets" to balance out your travel. Travel Green. When going on vacation or on a business trip, take your "green principles" with you.