Northern US states where subarus rule, they are sold with proper yellow fog lights still.I'd like to add a little to this one with respect to lights...
I live in the Central West of NSW, and driving home from work this moring - still dark - there was snow falling, and a stiff wind swirling it around.
I have a small high-intensity LED lightbar fitted to the bullbar, and switching it on resulted in something that wouldn't have been out of place in Star Wars, when one of the spaceships went into hyperspace. LOTS of long straight white lines driving right at you, no matter which way the road took you.
Turning off the lightbar made it easier to see in the blizzard-like conditions, and switching off the high beam - low beam only - gave me the clearest vision, because I wasn't getting all of my own light bounced back at me off the falling snow.
We all get caught up in the debate about the best / brightest / longest range lights for the front (and back) of our 4WD's, but sometimes, less is better.
Oh, and slow down - you might be an old hand at driving in the snow, but there's always the chance you'll encounter that tourist in a rented car who has never driven in snow before coming the other way.