Amazon offers a one time use 15% OFF Coupon on HUGGIES Snug & Dry Baby Diapers and Huggies Little Snugglers Diapers. This offer is highly irresistible as you get 1 diaper per 12 cents - 17 cents on certain sizes like Size 1, 2 & 4. For comparison the same diapers on costco.com costs around 20 cents per diaper.
In case if you don't see 15% OFF Coupon then it may be due to you already used this offer in the past or you are not an Amazon Prime member. Sign up for a 30 day free trial membership of Amazon Prime over here. Also check out Huggies Open Box offers available on Amazon for similar discounts.