I swapped on the snow tires. I try to avoid salty roads after fixing all the rust spots but if I need a reliable winter vehicle the wagon is perfect. Posi rear, manual trans, and real snow tires are pretty hard to beat.
That's kinda how I feel about my truck. I fixed so much rust on it that I hate driving it in the salt but it's 4x4, posi (trac-lok for Ford) front and rear, has meaty 31" all-terrains and a 5 speed. It's like it was optioned with snowstorms in mind.