The fast-paced, on-the-go lifestyle of a San Francsico young professional can leave little time for a good workout. Which means the dark clouds of guilt hang over the after-work round of drinks. Not to worry. An excursion to 15 Romolo ensures a conscience-clear night. The delightfully creaky North Beach watering hole is hard to find and harder to reach. It sits in an alley — or rather up an alley. Because between where you stand on Broadway and the bar's door, there's a steep, half-block march up a hill. Lean forward, pump the arms, keep breathing, and feel the burn. Then get yourself a refreshing cocktail. You earned it.