I don't know where the phrase "for fun and profit" (FFAP) came from, but it's fun to google for it:
  1. Snooping Email FFAP
  2. Writing Porn FFAP
  3. Grading AP Calculus Exams FFAP
  4. Faking Happiness FFAP
  5. Blasting Planets FFAP

and this is just silly: