Amazon has the 4-Pack Method Glass Cleaners (28 oz each, Mint) for $9.65 - 15% off coupon (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $17 with free shipping on $35+ or with Prime (extra 15% off for 5+ subscribe and save orders). Cleans windows, glass tile, glass tables plus mirrors.