Last week, I drove to Chicago. I've also taken Amtrak, and I've flown. But a friend suggested that I might check out the Megabus.
My friend made a pretty smart point: Megabus, and the other new bus systems that have popped up in the past few years, fit right into the Curbing Cars idea. Every person on a Megabus is someone who isn't driving an individual vehicle.
Megabus is supposedly cheap, especially if you book ahead of time, and it has wi-fi. You can work, sleep or chat with your friends. The company says it's carried 24 million passengers since it started in 2006.