I guess it all started when my wife suggested we walk to the grocery store. "Walk!... why would we want to walk to the grocery store? We've got three perfectly good cars" I replied. Well since then we've taken up hiking (and have hiked in Arizona, Florida, Indiana, Kentucky, Nevada, New York, Ohio, Pennsylvania, Tennessee, Utah and 5 other states), hugged a few trees (at least figuratively) bought lots of compact flourescent lightbulbs, and I'm now driving a hybrid car (and I got rid of the 10 mpg van!).