I'm smiling as I remember in one of the National Lampoon movies. Clark Griswold was spraying some "non nutritive cereal varnish" onto the bottom of a round sled. It worked a little too well. But it sure was funny.
If memory serves, my Dad tried various things on snow shovels, and he found that Pam cooking spray worked well.
I do have an electric snow blower, and it certainly is less work than shovelling.