Unfortunately, glasses can occasionally be a hinderance...i coul'dnt see jack out of mine this morning. Tried cleaning them on the move, but then you end up with smeary vision
. Still, that's a rare occurence. Just squinted into the snow instead.
My commute in the snow this morning left the bike looking like this...
Others have probably said, stay out of car tracks, stay in virgin snow and use a low gear.
Saw one nutter this morning. Roads are treacherous here, pedalling along on a BMX, 2 year old on the crossbar, towing a sledge along behind them on a piece of rope. If he goes over, kid goes too, and in traffic that was struggling anyway