This is my first post here - can't believe I hadn't found this site before now.
As for gloves I found this trick years ago for winter golfing - Scuba Divers gloves. They are neoprene, between 3 to 5 mm thick, tight fitting (skin tight if you get the right size), water proof and very warm. I wear them for winter hunting and range work as well as winter fly fishing (have to take them off to tye a fly on though), here in Ohio.
I have fingers that have bad blood flow and turn kind'a black when they get really cold. With these neoprene gloves I rarely have that problem, only if I stay in the field or on the river for 6 - 8 hours in 20degree weather.