I used to run 2 25lb bags in the trunk and 2 25lb bags right behind the seats. I found this helped with the weight distribution a lot more. Good snow tires are essential. Also, narrower the better!
I found that the aside from the above I had to take my time, drive more carefully and plan routes a little better. I avoided traffic and aways carried a sealed container with sand/gravel in it. This helped me out more times than you can count!
Or you can do what I did, move from Edmonton, Alberta, Canada to Dallas, Texas
