I too have the same question! How the heck can I stay warm???
I went out yesterday and it was about -17 celsius or 1 F, and I froze! Infact I was cold the rest of the night after skiing, chilled to the bone. I was shaking on the lifts.
I wore a supposedly warm new Helly Hanson jacket and pants, with expensive and "the warmest" - according to the store worker, Helly Hanson base layer and a fleece jacket. And the rest of the accessories on my hands, face and Smartwool socks. Feet, Hands, Head a-ok! Body was soooo cold.
The problem is I'm going out this weekend and the temp is said to be around -24 C or -11 F.
Should I wear 2 fleece jackets underneath? Add a soft shell, and fleece pants over my base layer?
I can picture myself shaking beside a roaring fire in the chalet already!