Like scrubbing bathtubs? Neither do we, so cut the required elbow grease with a power scrubber. Drill through the center of a circular tub brush. Then drive a threaded bolt through the hole so the threaded end pokes out of the handle. Add a washer and secure it in place with a nut. Pop the end of the bolt into the drill head, tighten the grip, and enjoy cleaning the bathroom for once.