Fall 2018 POPSUGAR Must Have Box $10 Coupon! Last updated by Hello Subscription on May 15, 2018. Subscription Box Coupons & Deals / Popsugar Must Have Box Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification POPSUGAR Must Have has made the Fall 2018 POPSUGAR Must Have Box available to purchase! For a limited time use coupon code MAY18 to save $10! What do you think of the spoilers?