Wine cellar doors and lighting are an important consideration. You want a wooden door as opposed to glass because it will protect your wine from damaging UV rays. The right lighting can make all the difference in how well you see the labels on your bottles. LED or fluorescent lights are ideal because they produce little heat and use very little electricity - a combination that's good for your wallet and the environment. If possible, consider recessed ceiling lights in order to avoid having cords strewn across your floor space (or worse yet, dangling down into it).