Amazon offers Prime members the Hoover 2X FloorMate Tile & Grout 32-oz. Cleaning Solution for $12.68. Add it to your cart via Subscribe & Save to drop the price to $12.05 and bag free shipping. That's a buck under our mention from last week and the lowest total price we could find by $4. It is 100% biodegradable and non-toxic.
Be sure to cancel your subscription once your order ships to avoid being billed for subsequent, recurring purchases.