Easy shops ... the Chili's shops a few months back were remarkably simple for dining shops, and provided a reimbursement that easily covered a meal for one, and could cover a meal for 2 if one were careful.
BankAtlantic teller shops were pretty easy, back when that bank existed, and since they did their own shopping, in house, they paid $20 for a shop that probably took less than 10 minutes in shop, and less than 10 minutes to report.
Used to have some interesting shops that required no interactions with people, but only taking pictures of a billboard ... that was pretty easy. I miss those.