Teachers come out ahead with the Discount School Supply free shipping offer, which is automatically applied to most purchases over $79, including bulk orders. On occasion, they upgrade this deal to free 2-day shipping, so look for the icon in the upper right-hand corner of the homepage. Certain items are never eligible for free shipping and can't be applied to the $79 total. These are marked with a tiny truck symbol next to the product description. To further bolster the Discount School Supply free shipping offer, FreeShipping.org is home to other coupons that require a code. These tend to go live during holidays and back-to-school events.