I found this site during my last years in the classroom. See Naier’s description of their Teacher Program below:
The only drawback for me when I used the site was that I could not use a purchase order with them. Depending on the purchasing rules for your school or district, you may be able to be reimbursed for orders from the site.
My favorite items to order were laminating pouches, felt-tip pens, highlighters, sharpies, and sticky notes. I used the items for my classroom, welcome bags for teachers, and giveaways during our monthly department meetings. For a relatively low cost, I had plenty of items for the entire year.