POPSUGAR Must Have Box Spring 2019 Preorders Open Now! Last updated by Hello Subscription on December 13, 2018. Subscription Box News / Popsugar Must Have Box News Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification POPSUGAR Must Have has made the Spring 2019 POPSUGAR Must Have Box available to purchase! Winter is SOLD OUT! DEAL: If you’d like to guarantee the Spring box use coupon code MUSTHAVE5 to save $5.