Amazon offers the
Charlie's Soap Laundry Liquid 32-oz. Bottle 2-Pack for $8.99. Order via Subscribe & Save to drop that to
$8.54 and bag
free shipping. That's about $9 less than you'd expect to pay in local stores. This hypoallergenic detergent contains no dyes or perfumes and rinses completely residue free.
Note: Be sure to cancel your subscription once your order arrives to avoid being billed for subsequent shipments.