Amazon has the 2-Pack Listerine Ultraclean 1.0L Antiseptic Mouthwash on sale for $13 - 20% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $9.45 with free shipping on $35+ or with Prime. $4.73 per bottle vs. $6.98 at Walmart.