Exclusively for Prime members, Amazon offers four Cuties Size 4 Baby Diapers 31-Count Packs (124 diapers total) for $10.46. Order via Subscribe & Save to cut that to $8.37. With free shipping, that's $0.07/diaper, tied with our mention from three weeks ago, and the lowest price we've seen for this quantity. (It's the best deal now by $3.)
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.