Thumb Score: +22

Amazon [amazon.com] has 2-Pk 16-Oz Arm & Hammer Clinical Care Dental Rinse for Adult Dogs for $11.32 – 40% when you ‘clip’ the coupon on product page – 5% when you check out via Subscribe & Save = $6.22.
Shipping is free with Prime or on $35+ orders.

Savings
40% off coupon applied. Subscribe & Save orders only. (check and activate [amazon.com])