Amazon offers the Cascade Complete All-in-1 ActionPacs Fresh Scent Dishwasher Detergent 80-Pack for $16.66. Add it to your cart via Subscribe & Save and it drops to $15.83 and bag free shipping. That's $4 under the lowest total price we could find for this quantity elsewhere.

Be sure to cancel Subscribe & Save after your order arrives to avoid being billed for subsequent shipments.