This might seem elementary.but I love the quiet spray idea! Very cool teacher ideas on this site. Quiet spray has nothing in the bottle but air. This may be the smartest classroom management tool I have ever seen.
Post-It Clipboards tutorial - These are super easy and CUTE! They cost less than each to make. Give them as parent volunteer gifts, student Christmas gifts, or anything really! I would get some colorful post-its, but other than that these are awesome!