When my old job went away I decided to ride my bike to the next job I'd get, that was Dec 2007. It's now been well over a year and I've lost 25 lbs since then and I'm still looking at this long term, change wise, because that is what it is.
Now because of this thread and wanting to further my nutrition education to be in better shape, I can look at those sites and others and find what will work for me in my quest for better fitness.