For Prime members only, Amazon offers the Pampers Easy Ups Size 5 Boys' Training Pants 90-Count Pack for $20.98 with free shipping via the steps below. That's $0.23 per diaper and $9 under what you'd pay in-store locally. To get this deal:

1. View the Pampers Easy Ups Size 5 Boys' Training Pants 90-Count Pack for $29.97
2. clip the $3 off coupon on the product page
3. order via Subscribe & Save for a final price of $20.98