I don't know, there's a huge difference between self-service, in which I do something for myself instead of relying on an employee, and the idea presented here:

I don't know, there's a huge difference between self-service, in which I do something for myself instead of relying on an employee, and the idea presented here: doing something for someone else which normally would be performed by a paid employee. I care about getting gas into my car or getting myself groceries, and as a not-very-social person, I see some value in just doing it myself (edit: or at the very least, I don't mind). But what do I care about joe schmo down the street and the jazzercise DVD he ordered from Walmart? I am not remotely interested in dropping that off to him. Maybe if Walmart wants to pay customers to do it? Just lump that in to their shipping fees? But then they're kindof employees at that point. Or at least something like a contractor.