We don't own a scale. The only time I weigh myself is on the scale at the climbing gym. I haven't been in weeks (thanks to my crazy job and a weekend away). Since buying the car I've only biked to work once (I've needed the convenience of being able to zip out of there without having to cut people off so I could catch the train).
Consequence? I weighed myself tonight and found out I've lost 6 pounds!
I suspect that biking made me hungry without really burning enough calories.