Wander into Temescal Alley and you’ll find a lot of men just hanging around, brushing the hair out of their eyes while they kill some time on their smartphones. They’re all waiting for a haircut — sometimes for as long as an hour — but they’ll tell you that Temescal Alley Barber Shop is worth it. The walk-in-only shop has earned a devoted following thanks to its promise of good music, whiskey, and discussions about motorcycles. It appeals not only to tattooed hipsters but dudes of all stripes, who rave about their $25 haircuts, which are executed with care — taking into account cowlicks, waves, and other hair patterns — and finished with a straight razor to the neck. The result is a clean, slick, and neat haircut that can transform that schleppy guy on his phone into a real head-turner.