From in depth massages to facials, spas have become hugely common in the United States in many different parts of the country. Spas offer a wide variety of services, making them incredibly popular for many different types of people. In fact, spas have become so widely utilized that more than sixteen million dollars worth of revenue was generated in spa treatments in the year of 2016 alone, let alone in the two or so years that have followed after. Part of this is because spas offer so many different services to so many different people – and there is a…