“Be the change” is often cited as an admonishment to do good work in the world. Though my motivations aren’t entirely unselfish, I like to think there’s a little bit of Gandhi in my life without a car. I want to see fewer cars on the road. Therefore, I don’t own one. It may seem like a small thing, subtracting one car from the vast American traffic picture, but small increments can add up to long-term change.