Barber services for the residents of your world

We know that barbers are, in the majority of cases, the main characters. I mean, they are the ones who cut hair. But what about the people in their chairs? Those people need a service, and it's not just any old service. <br><br>Just what kind of barber service would the residents of your world prefer? Why do they like it?<br><br>&#x200B;