Thumb Score: +18

Amazon [amazon.com] has 2-Pack 16-Oz Arm & Hammer Clinical Care Dental Rinse for Adult Dogs for $11.46 – 40% when you ‘clip’ the coupon on product page – 5% when you check out via Subscribe & Save = $6.31.
Shipping is free with Prime or on $35+ orders.

Savings
Save an extra 40% on your first Subscribe and Save order. (check and activate [amazon.com])