We used to use vaseline on exposed skin (neck, face, wrists). That was a zillion years ago, though (last time I was in cold-weather game, Starr was quarterback).
I would second all those who have suggested the little handwarmers. But you said 4 each -- I would double that, at least. They take up very little room in big coat pockets, and if you don't use them, they're good to always have on hand in your car.
A couple other things:
1. Big rubber bands to hold the pants bottom tight against your boots (outside the boots, to trap that insulating air inside, but not tightened against the skin, which defeats the layering effect.
2. Re: mittens v. gloves. We found it best to choose "both": first a tight fitting pair of gloves, then an oversize pair of wind-stopping insulated mittens over the top. That way you get the layering, you don't get the loss of warmth through all those extra seams of the gloves, and yet if you want to drink a beer (or coffee), you can retain some coverage by taking the mittens off temporarilyand leaving the gloves on.
And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God.
Romans 12:2 (NKJV)