I have to agree with running errands for people. When I was 14 I worked the summer for a friend of the family, she was an elderly lady who still lived in a rather bog house. For $5/hr she paid me to do things like weeding her garden, cutting small patches of grass, take boxes upstairs, and go grocery shopping for her (she would write out a list, drive me to the store and I would go in and do the shopping for her while she waited in the car).
As a nurse now, I see so many people who are elderly, live alone and need this type of help, agencies charge an obsecene amount per hour, which often means people can't afford it so they go without.
It was great for her, as she had a companion and was able to get the things done she wanted. It was great for me to do the work, make the money and spend time with someone who was so wise. Sadly, Mrs. Patterson is gone now, but I remember that summer!