Amazon has the 2-Pack 33.8oz Crest Pro-Health Gum Care Mouthwash on sale for $13.11 - $6 off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $6.45 with free shipping on $35+ or with Prime. Roughly $3.23 per bottle vs. $7.94 at Walmart.