Business isn't just about getting new customers, it's also about retaining existing customers. In fact, it can cost as much as 10 times more to acquire a new customer than to retain an existing customer, and the average spend of a repeat customer is up to 67% more than that of a new customer. But how do you effectively retain customers? Ongoing customer communication through Email marketing is a critical piece of the customer retention mix. Get more business instantly via email marketing.