40% off select Pataday, Systane & More. Amazon has the 2-Pack 2.5ml / 0.085oz Pataday Once Daily Eye Allergy Itch Relief for $24 - 40% off (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel at any time) = $14 with free shipping on $35+ or with Prime.