E-newsletters are one of the best ways to openly communicate with your clients and build repeat business. You can offer advice, highlight special offers, and reveal new services you bring to your spa. E-newsletters encourage vital marketing when they are forwarded by readers. They establish your credibility in the marketplace, and put you ahead of the competition. Most importantly, an informative, insightful newsletter will keep your spa at the top of your clients' minds and make them want to come back again and again. But there's more to it than sending out a monthly e-mail.