CurlKit Labor Day Sale: 50% Off Coupon! Last updated by Hello Subscription on August 30, 2017. Labor Day Subscription Box Deals / Subscription Box Coupons & Deals Make the first comment! Hello Subscription independently researches and reviews the best subscriptions and products. Things you buy through our links may earn us a commission. Save for LaterGo to commentsNotification CurlKit is having a Labor Day sale! Save 50% on boxes including on longer-term subscriptions (find them under the membership tab)! Use promo code LABOR50. Visit CurlKit to get this offer.