First, a huge thank you to MMM and Mrs MMM - I love your site. And Bakari and Arabelspy and everyone else who makes these forums so excellent. I have learned so many things already. But the biggest change is my wife (the less-mustachian of the two of us) has started reading the articles and has started making big changes.
We started riding our bikes, but we aren't in great shape (legitimate health issues and generalized laziness) so we would get tired quickly. Also, we live in a rather hilly area, so I have arrived at meetings red-faced, sweating, and not enjoying the ride. Then my wife decided she needed a pedal-assist electric bike. At first I didn't want to pay $470 plus tax (Walmart.com) for a new toy (ezip bike.) But she convinced me that this could help get us down to 1 car after our son graduates. So we went for it and I LOVE it. Very fun, plus I have no worries about going longer distances with it - places I probably wouldn't have biked with my other bike. We still pedal, so it is more exercise than driving, and less costly (battery plugs into a regular outlet.) As long as this bike turns out to be reasonably durable, I can easily see going down to 1 car.
So, not as mustachian as a regular bike - but, a lot better than a car. And I've already biked several errands I normally would have driven.
Heidi