Are you ready to stack some coupons this Independence Day? Head over to Kohl's , where any order, including sale and clearance, gets 15% off with coupon code SAVE15TODAY. Spend at least $75, and you can stack that coupon with coupon code SHOPNSHIP to get free shipping too. If you spend at least $100, you can use the free shipping coupon and coupon code SAVE20TODAY to get 20% off your order. But hurry! This is a one day offer and expires at the end of 7/4/2011.