My friends are big on leggins because they can wear them with almost anything and look cute. You can rock your leggins with a nice overzied sweater or sweater dress. If you read my earlier post you would see that I am a fan of sweater dress. The look is pretty and neat and you can pair with your boots and bootie.
The leggins cant be as thin as your summer leggins so if that is your style its time to start looking for those made with special material. Flee and Wool is popular winter leggins material.