Wow, just wow. Life hack for the win.
As for female vs male shoppers I'd disagree with that women make better shoppers. What I would agree on is that in America there are more women doing grocery shopping which means your odds of having a women deliverer do better is good. However I'd argue that in this case Exec just provides a more thorough service hence the extra cost.
My wife classically falls victim to marketing ploys and fancy packaging rather than getting the best deal. She often doesn't remember what supplies we already have at the house so I end up with a new bag of powdered sugar every holiday season.
Wow, can't tell you how much I have seen and experienced the BS that you mentioned. The company I'm with right now may be hiring soon, fwd this article to my boss. Thanks