Post Office is a small, intimate bar in Williamsburg that focuses on usquebaugh or what is called the water of life in Gaelic. The amount of choices on the menu is innumerable, and it is best to learn or know your whiskey before approaching the bar. From bourbon to single-barrel scotch, 10-year reserves, rye and other dark spirits, if you still can't decide, let the knowledgeable barkeeps...