You'll want to visit Jeff Levy, the bar manager at new Mount Vernon restaurant Tavern on the Hill, on Wednesdays, which entitles you to whiskeys discounted by $1.50. A Wednesday visit also enrolls you in a punch-card program, another of his inventions, and you'll need just 10 more mid-week visits to get yourself a free tumbler of whiskey (provided it's not the 15-year-old Balvenie or Johnnie Walker Green Label). Imported from Baltimore County, Levy has been a bartender off and on for nine years. He's precise, informed, and inventive. Order his Manhattan, and you'll never want for a fine drink. His knowledge of small-batch bourbons and obscure gins is impeccable. What's more, he's a proper conversationalist. Calling him Baltimore's best new bartender is probably an understatement.