With baby due end of November, I'd love to know from other cold-climate moms, what are/were your must-haves for the winter season with an infant? Would love recommendations/opinions on things like:

-Clothing for going out (layers? snowsuit? fleece suit?)
-Keeping warm in car seat and stroller (bunting, footmuffs, etc.)
-Babywearing... will probably get a Lillebaby carrier and not sure how it will work in the winter/get under a coat. Any coat or combo recommendations for making that work and keeping baby warm? Or is babywearing in winter with a newborn impractical and will I likely never do it anyway?

Any other essentials? BTW, I'm talking Canadian north cold, not a slightly chilly day in California Thank you!!