Sand bags are great. However do not place at way rear of vehicle since you have the weight balance far back making the vehicle easier to fish tail.
The best part of sand bags is you have instant traction (if not frozen) when you get stuck.
It will take some talent and finesse with 2wd pickup in the snow. Winter tires are best however good all-seasons (at least 4/32" if not more tread left) are needed. Also waiting till they plow works really well.