"Each job has three parts. Industry calls these get ready, do and clean up. Usually the do is the interesting part of the job, or at any rate, the part that accomplishes something, so in planning our time we are apt to forget to allow for the get ready and the clean up. Some jobs take a long time on the get ready, others on the clean up. Keeping this in mind, you can plan your work intelligently."
Good Reading Rack Service, 1955