When your shovel blade is warmer than the snow you’re shoveling, the snow sticks to your shovel. You can prevent this by storing your shovel in a shed or garage so it doesn’t get too warm.
You can also cover the shovel in cooking spray, shortening, vegetable oil, petroleum jelly, floor wax, or other similar substances that make the shovel a nonstick surface. Be sure to coat the shovel front and back, and you may have to reapply a few times.
If you don’t want to bother with a slippery shovel, you can also call a professional snow removal service to take care of the snow and ice for you.