But especially if you have more hair than Phil, who religiously gets his trim before every Council session, you need to be treated to Diego’s old school charm and learn what a real barbershop experience is all about. Washington lawmakers and lackeys alike swear by this place. Now’s your chance to find out why. So, head to Dupont Circle for Sunday brunch and trip to the Farmer’s Market and then stop by Diego’s for a shampoo, a cut and maybe even treat yourself to a luxurious barbershop shave before starting another week.