City / street driving; use the engine to brake before or combined with the brakes, depending on the snow and road etc.
Stay back 3 car lenghts at least from the vehicle in front, it's usually them that spin out of control and take you out. 4h, if your zipping through back streets to main streets, parking lots, back streets and parking lots usually full of snow, while well travelled main roads, almost clear from constant traffic, even so if pavement and slush/snow in the center lane, coming from a snowy parking lot or side street, you can remain in 4h just aim and drive with two wheels in the slush or snow in the center or if it's to the side.
You'll know when too dry under all 4 wheels when it starts to bite and hop.
Learn and practice how to slide and drive through around corners. Perfect excution is an awesome feeling
On a two lane main road, if they plough your snow, the center lane will have heavy traffic and paths of compressed snow. You can attack the outside lane with accumulated snow but hold the wheel really tight. As was mentioned coast over suspect patches straight in line, but drive the vehicle around corners most importantly on a decline. Lastly feel free to drive up any snow bank to park on anywhere in a good storm or after it's been cleared. Nothing more beautiful after a fresh heavy snow fall, when everything is prisine white, black tar, sidewalks, trees, all sound is dampened.