Here is a great deal you can take advantage which starts this Sunday 8/27/17. At CVS this item Colgate Mouthwash is showing for $3.99 but if you pair a coupon with an ECB you can get it free.
Here is the deal scenario.
Buy 1 Colgate Mouthwash – $3.99
(use 1) $1.00 off mouthwash, choose any brand CVS coupon
(use 1) $1/1 Colgate Mouthwash or Mouth Rinse 200ml+, 8/27 SS
Get a $2 ECB
Final Price: FREE