Heather- housecleaning, yardwork, building a house? You will not need "exercise" after all that work! I think we forget that ordinary daily tasks also keep us in shape. Sitting all day is what gets you out of shape. And childcare- never was in as good shape as running after and carrying around two toddlers all day.

When I had physically demanding jobs, I did not need to exercise. When I had desk jobs, I did workout, 3-4 times a week, 1-2 hours each time. My favorite "work-out" was the climbing gym. It was so much fun it was hard to stop. I think you have to find some activity that is so much fun that you cannot wait to do it. Then it becomes a life-long - live style that effortlessly keeps you in shape.