Thanks Phat. A lot of the discussion was about layering and trying to prevent a lot of sweating. Of course, having a tent with a stove in it makes it easier to dry things out.

I had no idea cotton jackets worked well in really cold weather. Now in mixed rain and snow, I'd want my modern raingear.

I'm tempted to buy one of those "mad bomber" hats just because they look so warm.

I must confess though, why anyone would want to be out in -20C or colder is beyond me.