Thanks for your comments!
Unfortunately I can't do anything about my disappearances Doc

Instead I try to make my photos better and better (still have much to learn

). Going out at these temperatures isn't that bad if there is no wind and air is "dry" so you're defintely right Birma. "Damp" cold is in my opinion worst thing for us, photographers. I was on short walkaround earlier this winter with -1 "damp" cold. It took 3 hours for my cameras and lenses to dry completly. Yesterday they were ready to use after one hour.
Currently there is -15 degrees in full sun but I'll stay in home today

At night temperature goes below -20. It may sound cold but I remember winter few years ago when we had -25 during day and over -30 at night for almost two weeks.
Greg: they use salt here too to keep roads clean. Lots of salt. I hate it. Thats why many cars rust rapidly. I'd rather like snow on roads and be allowed to use tires with thorns. Its much safer than using regular tires on semi-melted snow/ice.