There are two ways to earn more money as a stylist. You can service more guests or you can provide more services to the guests you already have. “Add-ons are a big part of our thinking in our salon,” says the Global Artistic and Business Director of John Paul Mitchell Systems and owner of A Robert Cromeans Salons and Walk-In Salons by Robert Cromeans. “Regardless of whether our stylists charge $25 or $75 for a haircut, an add-on increases the ticket. The difference between the industry average of 1.1 services per guest and 1.8 services per guest…