I found this page that has almost three hundred ways for teachers to use Post-Its! There are some really interesting ways to use them, and I think you all should go check them out!
I really like the idea of using Post-Its for your seating chart so you can easily move students around. There is also one that has the students write something nice about a classmate on a Post-It and they put it on that student’s desk. Another one I really like and it can solve a problem is having the students write down questions that do not pertain to the current topic for the teacher to look over later.
http://teachers.post-it.com/wps/portal/3M/en_US/Post-it-Teachers/Home/All-Activities/
Enjoy!
These are useful ideas!