I was noticing there were a few Dishwasher Detergent coupons available on Amazon that can be combined with your Subscribe and Save discount. Even if it doesn’t list a coupon on the main page, click on the dishwasher detergent you are interested in and you’ll see a coupon (this was the case for the Cascade Detergent!). Do you have a favorite Dishwasher Detergent?