If you don't already know, winter tires—totally worth the money. It's amazing how well they work in snow, ice, slush, and cold temperatures. Growing up in Minnesota, we actually never used them. However, the last winter I spent in Wisconsin, I bought a set of Nokian winter tires, and could not believe how well they worked in snow. I was convinced.
Anyway, I wrote an article on the benefits of snow tires for ThePortlander.com, a blog all about Portland, OR. Check the story out at the link below.
Snow Tires: A worthy wintertime investment (ThePortlander.com)