Reddit mentions of Carhartt Women's Knit Earflap Hat

First, don't believe the hype. You don't need the type of winter clothing that make you look like a deep-sea diver. Just make sure you have long underwear (I prefer the Under Armor or similar black neoprene stuff), and a few layers for your torso (base layer of similar material to long underwear, long-sleeve shirt, hoodie or sweater, jacket). That will keep you warm all winter, especially if you are a student and won't be spending a ton of time outside.

For hats: any old winter hat will do, but generally speaking the thicker and longer the better. If you're really sensitive to cold, consider getting a hat like this one. It will cover your ears and keep them warm.

Mittens are warmer than gloves, but are less useful. i'd guess the majority of folks up here own gloves, but a lot of folks own mittens too so it's just down to preference. Look for any brand that includes Thinsulate, and again thicker are better.

For boots I honestly rarely wear true "winter" boots unless I'm going ice fishing or something. For everyday use, I'd just wear normal hiking boots or tennis shoes with a couple pairs of socks (one thin and one thick over top of that.) If you have the "woven" type of tennis shoes, maybe consider getting an actual pair of boots. Sorel and North Face are probably the two most common brands, and again look for Thinsulate material if you're really worried about warmth.

In truth, you'll acclimate to the weather after a month or month and a half.

The most important thing to keep in mind is car stuff. If your car battery is older than 3 years, get a new one with the highest cold cranking amps rating you can find that fits your model of car. Invest in a pair of jumper cables, the longer the better. A lot of locals (including myself) don't put winter tires on our cars, but if I lived in Duluth I probably would. They help a lot in snow and ice, and Duluth has a lot of hills. Invest in an ice scraper that has a blade and a brush for getting accumulated snow off your car's roof and windows. Some people swear by brass blades, but I have never found them necessary. Plastic works just fine. Some people put a winter survival kit in their car that includes food, candles, & blankets. You don't need to do this unless you plan on making solo trips to remote parts of the state. Just make sure you have a phone charger and maybe a blanket and you'll be fine.