Possible Free+ Alka-Seltzer w/$2 Bricks @ WM- Walmart
There is a $2 coupon for any Alka-Seltzer Plus product, good through 4-27.
There may be small packs at Walmart for less than that, making them free or better. Stock varies by each location, YMMV.
www.coupons.com (zip shouldn't matter)
should be on the first page , top left, already