Walgreens has posted a 15% off coupon for July 31st only! Use it to snag some great freebies or near-freebies by combining with this week's posted deals. Check it out here! You can also use this coupon for 20% off Walgreens-brand items. Remember - you have to use this coupon at the photo or cosmetics check-out (but it's not limited to photo/cosmetics items)!