A little off topic but just a pair of comfortable shoes may be all that you need. I logged my walking miles 4-5 years ago, and I walked 1200 miles over the year walkng mostly during my lunch hour M-F and walking some most weekends too. I know there are thousands of treadmills collecting dust or with piles of clothes on them all of the country. Not sure how to explain it, but I'm more apt to walk outside (almost regardless of weather) than I am to walk on a treadmill in front of the TV.