Cleaning up

I am not the biggest neat freak, but coming into my room and finding this mess gets under my skin. 

This bothers me for several reasons: 

1)This mess wasn't even made by my students but by the students of three other teacher's kids who needed to share the template (tape on the floor). 

2) Look a how they are cutting the paper ... Who doesn't line up the edge of the paper with the edge of the template?  This was probably the biggest reasons for my "friendly" reminder. 

3) This mess occurred during the week that my air conditioner was broken.  My room was 84 degrees and we were displaced. My students were working independently on projects and I had hopes of starting my end of the year clean up and check lists...

Okay, so this may not be the nicest way someone could have asked kids to clean up after themselves, but it is the nicest way I could ask at this point. 

This is going to be a permanent sign in my room next year.  I am so tired of the kids adding to my mess.  I am even considering turning the last few minutes of every class into a cleaning frenzy, where the students pick up books, markets, paper, straighten composition books, etc up, and maybe I could clean off my desk ... maybe.