How Much Would You Pay A Plow Driver To Plow off Your Sidewalk and/or Driveway?

i have a ford f350 with a snow plow and was thinking since winter is right around the corner i could make some extra money by clearing off peoples sidewalks and driveways with it. but i was wondering how much do you think people would be willing to pay to have it done? i was thinking anywhere from $5-$20 depending on the size of the property they need plowed n shoveled. not that its hard work for us to do, but if people have large driveways or something they might not mind giving up 15 bucks or so to save themselves the trouble of doing it