Here in Detroit (pronounced "shit hole") we finally got some damn snow, so I just spent 2 hours shoveling the double driveway that we share with our neighbors. He was shoveling right next to me but eventually gave up and went inside for a break. I, being young and energetic (ha!), finished the base of their side of the driveway. It's the least I could do after they had cleared all the leaves from the driveway a few weeks before.
When I was in HS my little brothers and I also used to mow my neighbor's lawn (she was at least a billion years old, maybe two) and clear the ENTIRE block's sidewalk during the winter. We had an industrial self-propelled snow blower, however, so it was rather selfish NOT to just finish the block
If you have the ability, why not help out your neighbor? Karma, baby! It'll all come back around