I did a quick calculation of labor costs etc., for clearing the sidewalk - neighbor(1) helping neighbor(2).
1. snow plow repair $100
1. labor 4 hours @ $10 per hour $40
1. gas for blower $5.00
2. travel to site gas $10
2. snow blower gas $5.00
2. labor 4 hours @ $10 per hour $40
3. 2nd worker 4 hours @ $10 per hour $40
4. salt de-icer $15.00
County saved $255.00 minimum
You forgot the taxes and health insurance!