Heres a trick
Do not drive over the snow. When you do you just compact it and create ice-pack that is tough to get rid of.
if you do get ice then the best way to do it is blow all the snow you can, then throw a bunch of icemelt down. Let that work for a few hours, then throw some more down. At that point it usually makes it really brittle and fairly easy to scoop up with a flat-head shovel.