My favorite barbershop in Pittsburgh. Nothing fancy, but cheap. I get an easy cut so it's not hard to screw up, it's also hard to do well. The barbers at Anthony's do it well.
I typically go during off hours (not around lunch) when I opt to work from home. I have never waited more than 10 minutes.
The barbers at Anthony's also clean me up well enough that I don't feel the need to immediately go home and take a shower.
Tip: they only take cash.
Tip: take a $20 get a haircut, tip well, grab a coffee at the nearby Starbucks.