Generally speaking, for good service, you should tip 15 to 20 percent of the entire bill. Tip more for exceptional service or less for what you consider to be inadequate service. Tipping is your way of saying “job well done,” so tip more if the person performing the service has gone above and beyond what is expected.

Average haircut costs at a barbershop typically range from $20 to $40, with specialty styles costing more. Location, experience and reputation of the barber, and amenities offered by the shop can affect prices.

Typically, men should get a haircut every two to three weeks, but if you're doing a tight fade (or something similar that needs extra detail) every two weeks should more than do the trick. Definitely no less than once a month as your hair is gonna' get pretty crazy and out of shape if you wait that long.