Walgreens Photo: 50% off Curved Collage Glass Prints August 11, 2011 This post may contain a link to an affiliate. See my disclosure policy for more information. Walgreens Photo has another great deal today! Through Saturday, August 13, take 50% off all collage curved glass prints. Just enter coupon code BRIGHTPIC at checkout. Choose to ship your prints to a store near you, and you’ll avoid shipping costs!