Kmart takes 10% to 50% off sitewide during its Summer Blowout Sale. Opt for in-store pickup where available to avoid shipping fees, which start at $6.99. Plus, save extra on select purchases via these coupons. (You can also spend $49 or more to qualify for free shipping, although some items are available only via pickup. Large items may also incur additional fees.) Some exclusions may apply.