Optimism is easier to come by if you're rested, not headachy, or have low blood sugar. Wake up to light. Focus on what really bothers you about the weather, then make adjustments accordingly. The cold - dress appropriately, talk to others about how they keep warm when they're outside. Wear mittens instead of gloves, two pairs of socks, face masks, hats.
Delays getting to and from work - expect it, prepare for it.
Bring reading materials, snacks, allow extra time, make dates with realistic times or get in some good daydreaming time. Finally, tell wonderful, humorous stories. You can talk about your arduous trek to the bus, leaping over snowdrifts in a single bound, following the snow plow, making a snow family, sledding with the kids, finding the two snowflakes that are the same and all that other good stuff. Make a happy winter. There are several copies of the computer training manuals available for Word, Excel, and Windows.