You think spring cleaning at your house is difficult, you should try it at a school. What can we say, school folks collect lots of "stuff", so, it makes it a challenge when you have to deep clean classrooms over the summer months. In most cases, all classrooms in all buildings have floors redone over the summer, which requires everything to be moved. It's a challenge, but, it's just part of the fun of keeping a school clean and in repair.