Go here and join the Silk Almondmilk Give 5 Challenge to send your friends FREE Silk Almondmilk! First, you will need to connect with your Facebook account and will then be able to select up to five friends to send a coupon for a FREE half-gallon of Silk Almondmilk (up to a $3.99 value!)! Your friends will then receive a direct message in their Facebook account and will need to click the link and fill out the form to receive their coupon via mail. Ends Oct.7, 2014.