For Prime members only, Amazon offers the Cascade Platinum ActionPacs Dishwasher Detergent 64-Pack in Fresh Scent for $11.92 with free shipping via the directions below. That's about $4 under what you'd expect to pay in local stores, although we saw it for $2 less last week. To get this deal:
  1. View the Cascade Platinum ActionPacs Dishwasher Detergent 64-Pack for $15.97
  2. clip the $3.25 off coupon on the product page
  3. order via Subscribe & Save for a final price of $11.92 with free shipping
Be sure to cancel your subscription after receiving your item to avoid being billed for subsequent shipments.