Gloves
A good pair of ski gloves might be the most useful gear in your kit. They're great for skiing, hanging out on the tram deck, and come in handy when you get the rental car stuck in the parking lot. When you're busy digging the car out, you'll have plenty of time to thank yourself for getting some Hestra, Flylow, Rab, or Black Diamond gloves that not only protect your hands from the cold but actively keep them warm, despite the freezing cold temperatures out. And when you finally get back to the rental house to find two feet of snow in the driveway, your warm winter gloves will be right there by your side, clearing out the snow, which is more than you can say for your ski partners.