Amazon offers the Finish Quantum Max Powerball 64-Count Dishwasher Detergent for $9.83 with free shipping, via the directions below. That's $4 under the price you'd expect to pay at your local store, although we saw it for a buck less in July. To get this price:
  1. View the Finish Quantum Max Powerball 64-Count Dishwasher Detergent for $13.11
  2. clip the 20% off coupon on the product page
  3. check out with Subscribe & Save for the final price of $9.83 with free shipping