I do typically 3-4 miles a day walking, plus my pilates video 2 times a week (i have a daughter who likes to jump on my stomach, so it is hard to get in time). It is amazing how much I look forward to my walks - I do 1 mile in the morning when I walk to work, 2 at lunch with rocky_cdn and 1 in the evening. My body expects it now, and I find that I get antsy if I don't move. My energy level is up much higher than it has been in years.