As sensible as it may seem in an era when fuel prices are skyrocketing in tandem with environmental consciousness, a switch to bicycle commuting doesn't necessarily happen overnight. Certain questions arise: Do I really need that $1,500 bike? Are Lycra shorts necessary? What about traffic rules? What to do when a tire blows? In The Bicycle Commuter's Pocket Guide, veteran cyclist, bike commuter, professional messenger, and author Robert...