Dollar Shave Club offers a flexible monthly subscription model for razors and grooming products. Subscribers can select from various blade options, receiving a complimentary handle with their first order. The service provides substantial savings compared to traditional retail brands. Members can earn referral credits of $5 for each friend they sign up, which can be used toward their subscriptions or additional products. Subscription plans include the Humble Twin for $1 monthly (plus $2 for shipping) or more comprehensive plans like the Executive and 4X subscriptions, which include free shipping. Customers are encouraged to engage with the brand on social media for promotions, giveaways, and product discounts. Seasonal sales events such as Black Friday and Cyber Monday often feature exclusive deals.