Memberships, once the exclusive domain of warehouse clubs like Costco and BJ’s, are officially hot right now. From Amazon Prime and Walmart ShippingPass to subscription boxes (like Birchbox) and membership programs from retailers including Bed Bath & Beyond and Restoration Hardware, companies aren’t content until they’ve turned occasional shoppers into loyal members. But should you join? Will it be worth the money? How will you know if a membership program is right for you? We break it down. [More]