I've been lurking too long - I need to say hi!
I'm live in Thousand Oaks, CA, and I'm a daily commuter - about 15 miles RT a day, almost every day. I used to bike a lot when I was a kid, through college, but then just stopped. I always said I would commute by bike if I lived close enough to my job, but I worked here for 6 months before the light bulb came on - I could ride my bike!
Since getting back in the saddle early last year, I've dropped 25 unneeded pounds, about 20 to go to get to my ideal weight. It's been great.
My wife and I both started back up at the same time. She works too far away to commute, but we do some riding together during the week, and run as many errands as we can by bike on the weekends.