Winter in Detroit is no joke. It’s gray, it’s snowy, and most of all, it’s cold. But, there are plenty of shops that offer great outfits that will keep you cozy, warm and stylish, and even help you represent the city.   Check out some of the places to get closet essentials below.   Alter Ego has been promoting “sweater weather” season on its Instagram, and they have some of the coolest and most fashionable sweaters in Detroit. Their Camille sweaters will help you “stay warm and cozy” and can also be turned into a scarf.     Ferne has locations in Detroit’s New Center and Ann Arbor and has…