According to a recent study by the National Retail Federation, online shoppers will spend an average of $874 on back to school supplies this year, up 27-percent over last year. Ouch!

Be less-than-average this month — but still score an A-plus in savings — with these top online offers from FreeShipping.org.

1. Shoe Carnival
Buy one, get one half-off at Shoe Carnival through Sept. 4 with code BOGO.

2. Kohl’s
Save 15% on purchases of $100 or more through Sept. 5 with promo code BTS15GAN.

3. Famous Footwear
Get 15% off most purchases through Aug. 11 with coupon code SCHOOL15C.

4. Sierra Trading Post
Get an extra 20% off back-to-school savings on select items through Sept. 17 with code ACJBTS2.

5. American Eagle
Through Aug. 9, score free shipping on your order from American Eagle when you purchase a pair of jeans. Click here to activate the promotion.

6. The Children’s Place
Save 20% on most purchases through Sept. 11 with code E6H76QDP82.

7. Target
Use this link to buy one, get one free on kids’ shoes through Aug. 11 with promo code.

8. Samsonite
Enjoy free standard shipping on all backpacks through Aug. 31 (no code required).

9. Dell
Take 25% off select Dell laptops and desktops with code ?$QNC1?HSKNR9F.

10. Hot Topic?
Save $10 on shoes through Aug. 12 at Hot Topic (no code required). ??

FreeShipping.org is the largest resource on the Internet linking shoppers to free-shipping deals offered by over 4,000 online merchants.