One thing I love most about winter are cozy vintage sweaters. I love when I'm able to find a mint sweater skirt set. I found 2 sets recently that also still have the original belts with them.
Here are a few others I have stashed in my closet.
It always amazes me the variety of sweater sets that are out there. Not to mention they are also very versatile. From one sweater set you can get a variety of different looks. I don't see how sweater sets can ever go out of style.