Head over to Carters and Osh Kosh before 5/7 and you’ll score free shipping on any order. This offer is a rarity for these two companies, but to make it even sweeter you can use code MY15CART and you’ll save 15% off your entire purchase. Or if your order goes over $40, use code OKSAVE to take off 20%. It’s a great sale to score some flip-flops for the kids! With the 15% off code, you’ll pay $2.55 each shipped when you buy two pair.