Undriving encourages people to pledge to reduce their car use, and helps change perceptions that we "need" to drive. Want to get your Undrivers License? Sign up here. In a survey of Undrivers, more than 70 percent said they established a new transportation habit. See you on the bus (or train, or sidewalk, or in the bikelane).

Photo (CC) by Flickr user ecastro.