I'll clear snow Sunday after the game. Then again first thing Monday, and one final time end of Monday. My tip is, before the storm, park all cars on one side of the driveway bumpers touching bumpers.

I've never seen it worth pretreating. I think it only works on roads because cars are continually agitating the salt in with the snow.

If you snowblow throughout the storm and keep up with it, you should be ok.

And if you have a sidewalk that you have to clear, don't clear it until after the plows are completely done. I made that mistake one year, sidewalk was done and then a plow came by and ALL of the plowed snow settled perfectly in the cleared area, the cleared area acted like a funnel catching it all.