Improving snow traction

I have a short wide bed PU with wider tires than whats stock so that makes it a bit worse, what I do is put 3 40lb bags of oil sorb/cat liter over the right axle and have dual tanks so I keep the right side full. Actually I put two bags in front of the wheel tub and one behind since the traction starts at the front of the tire, its pretty flat all around where I drive and can go anywhere without spinning a tire in ice/snow conditions.