One of my favorite wine accessories is a wine preservation system, like the Coravin. It allows me to pour a glass of wine without removing the cork, preserving the rest of the bottle for weeks or even months. This is especially useful for high-end wines or bottles I don't want to open all at once. It also lets me sample a bottle over time, without worrying about the wine oxidizing too quickly. For anyone starting a wine cellar, I'd highly recommend a good quality wine opener-specifically a waiter's corkscrew. It's compact, easy to use, and provides better leverage than typical screw-type openers. It's essential for ensuring a clean, easy opening every time without damaging the cork, which is crucial if you're storing wine for the long term and want to keep the bottles in pristine condition.