When I was a teenager with permed hair, neon cropped t-shirts, and Hammer pants, I cleaned villas on Hilton Head Island for pocket money.
Back then, Hilton Head was a sleepy, upscale resort, with a year-around population of 8,000 and a tourist influx of a bazillion high-end tourists each year. Gas was $1.25 a gallon. There was 1 traffic light. But cleaning up after guests was still a chore.
As a college student and young woman, I went on to admin level jobs at hotels and villa complexes and realized how important checklists are to standardize cleaning and maintenance tasks and to ensure quality control.