It never fails: My husband always tells me he's out of Listerine when there isn't a good sale. I've learned to keep him stocked so we don't have that problem any more. This week I'll be popping into Walgreens for some more stash.
There is a new $1 off coupon HERE (use zip code 90210) and use those coupons along with the in-ad $3 off coupon. Reader Charisse also stated that she was able to get a $4 Register Reward back when you buy two bottles. You should be able to get two bottles for FREE after paying around $3 out-of-pocket and getting the $4 RR back. NOTE: The RR may only be for the Listerine Whitening Rinse.
** There is also another $1 off coupon at the Listerine site, just click on the image above.