Here’s a nice Amazon deal! Right now this Lumineux Teeth Whitening Mouthwash 16 oz 2-pack is on sale for $15.96 (reg. $21.99), plus you will save 10% when you subscribe and there is a 25% coupon on the item page. That makes the final price just $10.37 ($5.18/bottle), which is 53% off the regular price:
Lumineux Teeth Whitening Mouthwash 16 oz 2-pack – only $10.37 with sale, subscription and coupon (reg. $21.99)