More or less in chronological order.
pin setter in a bowling alley
baling hay
construction
setting up motorcycle rig at a carnival
cleaning out a corn silo
night janitor at newspaper printing place
dishwasher at a Chinese restaurant
dishwasher at a pizza joint
stacking cartons of ketchup on the assembly line at a Heinz factory
building walls at a prefab housing factory
attendant at a mental hospital
lab assistant in a research lab
dishwasher at the student union
part of a survey crew
window installer
computer programmer at a number of different places
farm worker
roofer
carpenter
printing press operator
print shop foreman
computer programming
CFO at a book publishing company
more computer programming
business owner