I walked a lot as a teacher in South Korea due to the fact I didn't drive overseas. However, at home, I mostly limit walking to mountain hiking or moving inside the confines of some store like Wal-Mart. Note, I get most of my exercise by jogging or using a skiing simulator so I don't see the need in walking all the time. Of course, I do think that walking can save money when someone lives in a small town. However, in certain instances of that situation, a bike would be more suitable. It depends on how big the town is and your distance from work and other things.