I have been a mystery shopper for about 3 years. I started off doing it part-time, but now full-time that my kids are in school. I look forward to learning a lot from this forum.
Do not read so much, look about you and think of what you see there.
Richard Feynman-- letter to Ashok Arora, 4 January 1967, published in Perfectly Reasonable Deviations from the Beaten Track (2005) p. 230