5. Transit info by the busload
Whether your goal is to slow your company's burn rate or the melting of the polar ice caps, public transit can often be the best choice for getting around town.
HopStop.com has the complete rundown on subway, bus, and commuter rail lines in five of the nation's most important business centers: Boston, Chicago, New York, San Francisco, and Washington.
The free site will tell you which train or bus to catch, how long it'll take, and the fare. HopStop, which is accessible by cell phone, plans to add five more major U.S. cities this year.