When it gets cold, I wear this:
A pair of poly socks for wicking moisture away from foot.
A pair of wool socks.
Good boots.
2 pairs of fleece sweatpants.
1 pair of jeans.
my camo pants(non insulated)
long underwear shirt.
t-shirt
fleece sweatshirt
down vest
camo coat(non insulated)
on my head i wear a fleece balaclava that covers my whole head and my neck.
on hands i wear a thin pair of camo gloves.
i just keep my hands in my hand muff thingy.

i dont put on my camo or my down vest until i get to my stand that way i dont sweat which keeps me from getting cold from the inside out.

wool works well too