Just set up my winter fixie to go downtown tomorrow morning.  It's 19 degrees and about 6" of un-plowed snow.  10 miles.  I'll leave the house about 6:30 on cross tires and 44 x 18.  Debating whether I want to travel light with a small backpack or go front panniers with some weight in them.  The bike will handle a lot better with the panniers.  I used to bring books I didn't need in my Ann Arbor school days when the roads were bad.

I'll wear my winter socks: cross country skiing socks, almost knee high with the sole cut for a cleat and coated with Boot Tex (I think that was what it is called; a brush on rubber for repairing hiking boots)  Makes for a very walkable surface.  And with my bare foot in a produce bag, normal winter socks, then a large produce bag over my shoe and inside the big sock, all the rest stays dry and is good insulation, including the shoe.

In snow, high teens for temp is close to ideal.  Snow is hard work.  Cold isn't a problem.  And it is cold enough that spills in the snow don't get you very wet.  Of course, this is Oregon and we have storms brewing so tonight's observ atins don't mean much.  And there is the chance I will awake and decide this not so young body really shouldn't be out there.

Ben