This document discusses smarter choices theory and practice for encouraging sustainable travel. Smarter choices involve promotional measures to boost uptake of alternatives to driving alone. Key tools include travel planning with employers, schools and residents, as well as public transport information and promotion. Personal travel planning delivered at key life events, like moving house, can be particularly effective by helping people establish new sustainable travel habits during times of disruption. Integrating smarter choices initiatives with transport infrastructure improvements increases impact. Nudging people towards sustainable options as the default choice also shows promise according to the theories discussed.