Oh, dont stress! Stacking is totally possible but you have to be super careful with the order of operations. Basically, Kohls Cash is treated like a form of payment rather than a coupon code, which is usually why the system gets confused when you try to jam everything into the promo box at once. Make sure you apply your percentage-off coupons in the promo code field first. Once those are applied and the total updates, you can then enter the Kohls Cash numbers in the payment section. Just be careful though, sometimes specific brand exclusions apply. If you need new gear, honestly just look at items from Nike or similar big labels, you cant go wrong there. Just double check the fine print so you dont lose out on your savings.