BuzzFeed asked teachers which supplies they spend the most on out of pocket. Here's what they had to say:
1. Tissues. Gesundheit.
2. Photocopies for worksheets, projects, and notices.
3. Hand soap. Also hand sanitizer.
4. Pencils. No. 2, and otherwise.
5. Those Post-It easel board things.
Easels, poster boards, and large sticky pads are great for brainstorming and tracking progress. News flash: Schools don't provide them.