Amazon has 2-pack TheraBreath Fresh Breath Mouthwash 16 fl oz Mild Mint for $7.43 - 5% w/ subscribe =
$7.06. Shipping is free with Prime.
Amazon has 2-Pack 16-Oz TheraBreath Kids Mouthwash with Fluoride (Wacky Watermelon) for $7.99 - 5% w/ subscribe = $7.59.