Amazon offers the Purina One Tender Selects Blend With Real Chicken Dry Cat Food 16-lb. Bag for $12.02 with free shipping, via the directions below. That's $4 under the best price we could find at a local store. To get this price:
  1. View the Purina One Tender Selects Blend Dry Cat Food 16-lb. Bag for $17.92
  2. clip the $5 off coupon on the product page
  3. check out via Subscribe & Save for a final price of $12.02
Of note, it also comes in Salmon for $12.86 with free shipping via the directions above. That's a $6 low.

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