I teach 7th and 8th grade, and while I'm no neat freak, it drives me crazy when students leave trash in the room when they leave! Usually, it's crumpled up paper, but sometimes it's candy wrappers or water bottles. I can prevent this in my later classes by issuing a snack ban; however, those classes are pretty good about cleaning up. My first class, though, is getting really bad about it. I have to allow them to eat their "grab and go" breakfast, under the expectation that they quietly dispose of their trash. I tried being nice, and upon the first offenses, I would remind them of the procedure. But I've learned that you can only be nice for so long, or they'll start using you as a doormat. I started telling them in the last 1 or 2 minutes of class to check for trash under their desk, and if they leave anything, it's automatic lunch detention. I know exactly where each student sits, because I have their nametags on their desks. The first time I had to assign detention for leaving trash, the student claimed I was being unfair and tried to claim she forgot, despite my saying twice in that class period that students need to clean up. I haven't tried rewarding them for cleaning up, because I feel as if at 13-14, they should have enough respect and responsibility to clean up and not expect a prize for it. Maybe I'm just old fashioned, but even at that age, I had enough respect for my teachers to clean up any messes I made. This may be just a rant, lol, but does anyone have any suggestions??