Groupon Discount Page- Includes discounts for Staples, Office Depot, Teacher express, Target, Walmart, Best Buy, and more.

https://www.groupon.com/coupons/events/back-to-school-sales

RetailMeNot

https://www.retailmenot.com/ideas/backtoschool

The Krazy Coupon Lady–

http://thekrazycouponlady.com/category/back-to-school/

Living Rich with Coupons-

http://www.livingrichwithcoupons.com/back-to-school-deals

Deals Plus

https://www.dealsplus.com/popular?gclid=CjwKEAjwgdS-BRDA7fT68f6s8zMSJADZwHmviSro-sYV6kE8mLHrnauNJHvf52LsHjh0apmbmV8B2RoC_1jw_wcB