Mopping and mopping again after the weekend's mopping is starting to make headway on 70 years of bar grime at Molly's. Really. And besides the exercise, it's simple and straitforward work whose effects are immediate. Mop Zen. Last week my back hurt from stress so much that I could barely put my socks on. This week I am mopping, if gingerly. I don't even mind the footprints on my wet floor.