Any tips on driving in snow? i'm getting no grip at all!
Snow chains. 
What's the difference between a snowman and snowwoman?
Snowballs. 
Very old and very silly, but still I chuckle

IMO, get used to the brakes on a straight bit of road with nobody behind, brake test often on varying levels of snow and ice or each time the conditions change, say from gritted road to clear but not gritted to packed snow to un packed snow. The grip changes each time so test to see what grip is there. Feel the abs cut in then back off the pedal on each surface change, find the pedal pressure that works best by pressing progressively harder then releasing instantly they lock up.
Don't do what I did last year and sail straight through a red light with abs banging away and not slowing down AT ALL. I backed off the brakes but nowhere near enough, because I hadn't familiarised myself with the bake pedal grip level first.
Same with the power, test on a straight bit when it's quiet and nobody around then it's familiar when applying on a corner, short and progressively firmer presses on the power to asses grip.
But generally, low tyre pressure, weight in the boot, carry a shovel. It's sup rising how a small lump of snow in front of the wheel can cause enough resistance to make the wheels spin and your stuck. Often takes two seconds to dig it out and away you go.
IMO anyway.....