Perhaps I've mentioned my part-time side "career" as a mystery shopper... You may laugh, but perhaps not too heartily... By year end, I'll have earned $1,000+ by rating cell phone shops, fast food and casual restaurants, high-end department stores, banks, storage facilities, movie theater trailers, ice cream freezers—my favorite, a hair replacement service—and a host of other retailers that are too specific to give away. Some shops pay as much as $45 a shot.
One of my newer feats: pizza, cool cats. I order, I rate and rank, I take photos of said delivered product and I get paid, not only for dinner, but for completing the task. Mm mm, good!