A few years ago we hired a young girl to clean our house. She was a little naive, and would clean the house while we were away during the week. One day I came home early, and ran into her. My wife had left her a note on the things to do that day. After a few moments she came to me and said "Christy left me a note to clean the floor, and she asked me to clean the floor and use a little elbow grease.". She then asked me "where do you keep the elbow grease?". I got a good chuckle out of that.