CVS [cvs.com] has 2-Count Crest Pro-Health Mouthwash (Various) + $4 ExtraBucks Rewards for $7.98 when you follow the instructions below. Select free store pickup where available.

Instructions:

• Sign into your CVS ExtraCare account (free to join [cvs.com])
• Add a quantity of 2x Crest Pro-Health Mouthwash priced $4.99 each (you may mix or match):

​Crest Pro-Health Intense Mouthwash, Clean Mint, 1 L (33.8 fl oz) [cvs.com]
Crest Pro-Health Advanced Multi-Protection Anticavity Fluoride Mouthwash, Alcohol-Free, Fresh Mint, 16.9 Ounce [cvs.com]
Scope Outlast Mouthwash, Mint [cvs.com]

• Clip the $2 Off Coupon from one of the product pages above (Expires at the end of June 21)
• Proceed to cart
• To verify you qualify for ExtraBucks Rewards:
• In cart, under product title, click 'Counts towards ExtraBucks Rewards'; a pop-up should appear showing '$4 ExtraBucks Rewards for purchasing 2 Scope/Crest Pro-Health Multiprotection 1L or Advanced 500mL'

Total should be $7.98 + Earn $4 in ExtraBucks Rewards + Free Store Pickup at CVS

https://www.cvs.com/shop/crest-pro-health-intense-mouthwash-clean-mint-1-l-33-8-fl-oz-prodid-2740093​ [cvs.com]