Exclusively for Prime members with Amazon Family, Amazon offers the Luvs Ultra Leakguards Ginormous Box Size 1 Diapers 252-Pack or Luvs Ultra Leakguards Ginormous Box Size 3 Diapers 186-Pack for $13.58 with free shipping via the steps below. That's tied with last month's mention of another size and the lowest price we've seen for a ginormous box in any size. (It's also about $15 less than you could expect to pay in local stores.) To get this deal:

1. View the Size 1 Diapers 252-Pack or Size 3 Diapers 186-Pack for $19.48
2. clip the $2 off coupon on the product page
3. order via Subscribe & Save for a final price of $13.58

Note: You must have Amazon Family to get this deal. (Most Prime members get Amazon Family for free with signup; however, some people sharing Prime benefits prior to Amazon Household may not qualify.) Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.