10 Things I Learned From Teaching post, I said that creating a "Sign-Out Binder" deters colleagues from interrupting your lesson to borrow items and helps you keep track of your things. It is a Catch 22: These colleagues are your friend and you want to help them, but on the other hand these are your things that you bought with your hard earned money! Why should you be punished for spending money on your classroom? So one year, when there were two new teachers on the grade (not new to teaching, though) and the other two were still borrowing from me as usual, I came up with the "Sign-Out Binder." I explained to them that it was too hard for me to go asking around four plus classrooms to find my materials when I needed them. This binder allowed me to keep track of my items and only a teacher could sign them out. If a teacher wanted to borrow something, she could not sent a student over to borrow the item. This has worked well for me, I hope it helps you, too. I know all my blogland friends are those type of teachers where everyone says "ask her, she has everything."