Thanks for the kind replies. The idea came from a biography I am reading of Richard Feynman, who taught physics to an artist friend in exchange for drawing lessons (a lopsided deal if ever there was one!) I haven't received many offers so let me assure you that I am no Feynman, nor even particularly talented as a poker player, so don't be shy about offering what you can.
I'm not sure about Farsi but I do like the idea of a language tutor - I have long wanted to build on the small amount of French I managed to retain from school.
I did work in a chip shop when I was younger but it didn't suit me.
Still hopeful!!
Author