At Kmart, spend $10 or more in select school supplies to get 100% back in Shop Your Way Points. (A $25 limit applies to most items, although some top out at $35. Not a member? It's free to sign up.) Assuming you'll use the credit, that means many purchases will be essentially free. Choose in-store pickup to dodge the shipping fees, which start at $5.75, or bag free shipping on orders of $35 or more. Deal ends September 17. A couple of best bets, with comparisons assuming you'll use the credit: Of note, Shop Your Way Rewards members will earn a Kmart credit with these purchases and may be eligible for additional credits and discounts.