So… I’m contemplating getting rid of my parking sticker to become, for the second time, exclusively a walker/biker to work. There are a few different reasons for this, which shall remain obscured for the moment, but all of them are good. But even thinking about it seriously, where you consider a change in behavior and perhaps various alternative uses for a non-trivial yearly sum, you stumble onto all kinds of causation-related affinities for greater Bikedom. If you live in any place even remotely bicycle-friendly, reasons to give up the car are literally all around. And many of them wind up with reserved seats on the green-means-green continuum. To wit:
More here.