Here is a cheat to get the Jack'o`trades card.
First, go and talk to him.
Say yes to the balacing practise.
Then walk away and get into the helicpter on top of the building next to the jail.
(not the one at the airport).
Finally,fly away and get the card,and it will be the jack'o`trades card!
Happy cheating!
(P.S.This will also unlock delivering the grocery activity,but doing this cheat you will not be able to practise balancing as the thin pice of lego will disappear).