No matter how stocked a bar may be, if it doesn't have alcohol it's not really a bar. What's the use of a cocktail shaker, martini glass, and toothpick if there's no vodka? Having one bottle is a must, but if your budget allows for more purchase a variety of types. Select one high-end bottle for sipping on the rocks, one for mixing vodka heavy cocktails like martinis and cosmopolitans, and one lower- end for Bloody Marys and Red Bull Vodkas. Supplement the collection with flavored vodkas — vanilla, citrus, and berry are my faves — that are popular in mixology. Lastly, a nice bottle of organic vodka is a special way to treat eco-conscious guests. Take a look at some of my selections below.