At Amazon, purchase an Olay beauty product and get a second for 50% off. (Discount is taken automatically when you add two items to your cart.) Plus, checkout via Subscribe & Save to get an extra 5% off and bag free shipping. Even better, cut an additional $2 off many items by clipping the coupon on the product page.
Be sure to cancel Subscribe & Save once your order ships to avoid being billed for subsequent shipments.