Poly Pro,Thermax,and polar tech 400 fleece.You can get these at Cabelas fairly inexpensive and they do carry full goose down long johns(you would look like the michellan man. but you would be warm.goose down is light and can be compressed to fit under any jacket.It is the warmest way to go.

Lots of great hints here! Another thing about this time of year is simply climatizing (getting use to the cold). I know for me come December, after spending everyday in November perched in a tree, I can handle the cold much better than my peers who don't hunt.

I dress quite light this time of year just so I can get used to the temperature, as I know that it's going to get MUCH colder. When the end of Nov. comes and it's -40, I too will be bundled up like the state puff marshmallow man....but until then I like the ability to shoot more than 10 yards! Best of luck staying warm!