Universal Diaper Bag Just $9.99 (Reg. $20)! This post may contain affiliate links or sponsored content. See Disclosure Policy. Amazon Hurry to Amazon and grab this Universal Diaper Bag for jus $9.99 (Reg. $20) after you clip the coupon and use promo code 40L1XK66 at checkout! This bag is perfect for keeping all your baby gear organized!