Friend of mine that I use to help plow. Used concrete blocks banded to skids in the back of his pickups.
In my 2 wheel drive dump truck, my first year using it, I used about a ton of sand. Truck was pretty much unstopable. It could really stack a good pile. I had no problems moving frozen piles from weeks earlier snows that other plowers had put in the wrong place. But it was a problem for me to get rid of sand when spring came. Pit would not even allow me to just give it back to them. Finally found a concrete company to take it.
After first year and since, in the dump truck, I use a load of about 3 yards of mulch. Then, come spring I am ready to go when it is time to start mulching. I think that works pretty well for my situation. Always figured the mulch would work as a traction use if needed, have never had to find out yet, though.
In pickup, I use solar salt bags. About 10 - 15 bags depending on weight of bags, 50lbs - 80lbs. After season, I use up the salt for my house water softner.
Unfortunately, I do not do salt apps, but those that do, I think have a ideal setup since all ready having to haul salt.