The peanuts might be a hate crime, but charging a fee to let someone plug into a battery pack would probably be popular.
All other insinuations aside, and even though everyone seems to wear sneakers these days, I would love to see the shoeshine service come back.
[FWIW, my BMW dealer/service had a lovely olde black gentleman, who would shine your shoes, if you were waiting for your car to be serviced.]