at least once a week i see an older woman for acute knee or back pain who starts her story off like this: 'well, i was on my hands and knees scrubbing the floor - ' ??!! - wait a minute, you were what? who does that? i don't know a single woman (or man) in my 40-something age group that scrubs a floor on their hands and knees. i think to myself, girl, you need a swiffer.