I did it for my father when he was debugging his programs and I would go with him at night after school to help. He would run the program to find the errors and I would punch the new cards for him, install the tapes and the hard disk stacks too! He would rent time at either the Burroughs, IBM or Unisys computers for this work and he got paid over $150 an hour! And he never worked less than 60-70 hours a week so he made very good money in the early 70's.
