Whether you love them or hate them, ordering wine by the glass is sometimes your only option. But due to high mark-ups and inconsistent demand, a reasonable yet interesting wine-by-the-glass program can be impossible to design. That changes now, as the new Coravin system is making wines that used to be out of the one-drink drinkers grasp accessible. The new technology can tap into any bottle to extract a single glass of wine without affecting the remaining contents, and upscale restaurants around Chicago have begun to incorporate it into their wine lists.