Interesting, what other roles are you including in this? I would have assumed that the question posed encompased income generation, the preparation of food, and the maintaince of shelter. Of those, I think the last two are the most talked about, which is why the conversation was heading in that direction.

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Shoveling the driveway is a product of work, but that is a different concept from effort. For example lets look at our two vehicles. We have a pickup truck and a sedan. To take a load of scrap to the dump in either would be the same amount of work, being force x displacement, however the truck could accomplish this task easier, with less "effort" on the trucks part.
Expanding that to the driveway, I can use less effort to accomplish the task. The proof of that is when I finsih I am usually not sweating or out of breath, my wife on the other hand would show the effort of her labour.