He’s worked as a magician, waiter, karate teacher, landscaper, vitamin distributor, glass-blowing lathe operator, travel agent, gas station manager, U-Haul dealer, moped salesman, restaurant cook, personal growth trainer, manager of a lawn service company and also as manager of a travel agency. David Allen claims to have had 35 professions before age 35. So, it’s worth to listen to him:
Your mind is for having ideas, not for holding them.