Turn Your First-Time Customers into Recurrent Clients. The best newsletter list to care about is the one that has all your past clients in it. Sharing content and special sales to reactivate all your past customers surely pays off as it takes up to 7 times less money to make a customer repeat a purchase than to obtain a new one. With WooCommerce Newsletter Subscription you may integrate into your checkout a checkbox that allows your customers to subscribe to the mailing list of your choice with one click. Moreover, you can configure a widget that will place a signup form in your sidebar or any other widget area. You can also take a look at your stats in no time with our simple yet effective dashboard widget. MailChimp, MailPoet (Version 2) and Campaign Monitor are all supported mailing clients.