I had a big problem with students using the bathroom or getting drinks last year. They were always asking to go, multiple times per day, and a lot of instructional time was being missed. So I created punch cards to help with the issue. When ever a student wanted to go to the bathroom or get a drink, they had to bring me their punch card and I would use a hole puncher to mark it off. (Eventually I turned that job over to a student.) There are 10 bathroom spaces, 6 drink spaces, and 2 nurse spaces