Through 12/09, Walgreens has 32oz Tilex and 32oz Formula 409 on sale for $2.49. Just $.99 after the $1.50 off one coupon below!
You need to use zip 62946 for this coupon. Insert 62946 into the More offers box on the upper-left and click go on the upper-right. Then click the link below and the coupon should be pre-clipped for you.