Once the wine leaves the vineyard, it can either hit the stores or go through a distributor to a restaurant, or both. Top restaurants that put a premium on great wine typically employ a sommelier. In the simplest terms, the sommelier is the wine expert in charge of pairing wines with foods on the menu and talking to diners about the wines, before, during and after dinner. They're also in charge of quality control and training the wait staff how to present and pour. Known for an endless eye for detail, a sommelier can round out your meal with the perfect pairing while scaring the pants off your waiter because of his or her typically demanding nature.