“Borrow an idea from Zulilly, the mom-centered discount shop. The company sent an email asking customers to ‘Tell us which brands make your heart flutter, and we’ll tell you when they’re on Zulilly’.”
Follow in the footsteps of Zulilly and ask your subscribers about their interests, specifically what brands they favor the most. This makes them feel like they’re part of your buying process and that you really care about providing them with the products they want and need.