You know, in all fairness to the Browns, I don't know how you can make money doing it. Think about how much time you spend in a grocery store, bagging the items, then taking them home and unloading them.
Even if you got $30 every time you did it, would it make you rich?
Even if you were able to shop for yourself plus a few other people and did this X4, would it be worth it?
Plus, many grocery stores are starting to do this themselves. In our area, Acme Markets delivers to your house for $10 regardless of the size of your order. If you want to pick up at the store, the charge is $5. As a supermarket, they make money on it, but could I if I did this for people? I don't know how I could.