how much is shipping?
if shipping is anywhere near $5, an alternative would be to go down to your local hardware store where you can find "quickcrete" 60lb tube sand bags for $5 each...$15 later and you'll have nearly double the weight at the same price
if you're trying to find out how to prepare for snow, I also recommend that you get good tires, go out to an empty parking lot away from people/hazards, and just practice how to drive in the snow. smart driving might help more than a 100lb icebag
here's a thread with pictures of what I did with sandbags:
frankly, I wouldn't do it again...the sandbags turn into icebags when it's cold enough, and if it snows a lot, the bed fills up with snow anyways, lol