A good investment would definitely be in the peacoat, a timeless coat which never seems to get out of fashion. The peacoat also requires less accessorizing than usual, since the peacoat already has more buttons and pockets than a regular coat would have.
With or without a peacoat, accessorizing is vital to one's outfit. This can be done with a scarf, which can be tied in a multitude of ways around one's neck or head. One good option is buttoning your coat up with your scarf tied around your neck and the ends of the scarf tucked into your coat, with part of your scarf still showing. This is especially good if your coat is a neutral color, like most coats are, and your scarf is of a brighter color to bring some color to your outfit.
Faux-fur earmuffs and other accessories with faux-fur are also in this season, and quite easy to pull off. Not many people can pull off the bulky caps or other unflattering hats (that can end up ruining your hair) without making them look quite unflattering. This is where earmuffs come in, keeping your ears warm without smashing down your hair and looking pretty stylish at the same time. HINT: Look out for earmuffs, scarves, peacoats, and other coats with faux-fur trim to keep yourself looking stylish and warm this winter.