Thumb Score: +19

Amazon [amazon.com] has 33.8-Oz Listerine Cool Mint Alcohol-Free Mouthwash (Mild Mint) for $5.95 – 35% at checkout – 5% when you check out via Subscribe & Save = $3.57.
Shipping is free with Prime or on $35+ orders.

Savings
35% off coupon applied at checkout. Subscribe & Save orders only. (check and activate [amazon.com])