I do whatever I feel is safe for me to do. My riding includes, roads, sidewalks, bike lanes, MUPS, dirt paths, cutting across parking lots... Sometimes I take the lane, sometimes I ride close to the curb. I refuse to listen to people who say that taking a whole lane is an absolute and only proper way to ride, those people are clueless and don't know what they talking about. There are many places and situations where vehicular cycling dogma is not practical or safe to practice.