So, my son lucked into an opening day celebration at a south loop hair salon and got the best cut of his college-student life, half-price, and a hand full of coupons. He's thrilled, and so is his mother because his hair is complicated and most people who try don't cut it very well. A old-fashioned barber, at a real barbershop might know what to do, but those are few and far between. As you are searching out Chicago's oldest diner, is there also an oldest barbershop? And, especially in the Loop, are their hidden barbershops inside those towers that he doesn't know about?