Great thread. Thank you to all you contributed above. Adding a couple of thoughts. For those who do not have the capacity to keep your battery on a charger, if/when you take it out, it needs to be a full 45 minutes drive, and second, one of the things that sounds counterintuitive for winter driving, is to insure once it is been run for half that length of time (or more), turn on your air condition at least for a few minutes to avoid condensation built up within its system. I do not live in as harsh a climate as you, but try and find a couple of dry dayes in a row, so use day one for the roads to dry up, the second day to do my driving.
Thanks again for all the great suggestions made above!