I have minor gumption.

Saturday I got to my spot at noon, and had $100 in my pocket by 2:30. Stayed there until 6pm and left with $161.82 to the good...one debit card transaction screwed the total cash in my pocket. Money vs time = $26.97/hour, which beats the $7.50/hr they advertise for clerks over at the convenience store.

That's not the hundreds or thousands from selling ads on mirrors or menus, but then I don't think I would enjoy selling ads. I spend my down time messing around on my laptop, either writing or reading Kindle books, or playing games. It suits me. My only complaint about my present spot at the muffler shop is that it's too noisy for good napping.