A task called quick may still require starting, preparing, finishing, and returning everything afterward.

Small jobs are rarely as small as their description. The five minutes of actual work sits inside finding the tools, clearing a space, doing it, cleaning up, and putting everything back, and the surrounding parts are usually longer than the middle. This is why a day of quick tasks can consume a day and appear to have produced nothing.

When you estimate, count the setup and the packing away as part of the job. And where you can, group the small tasks that share the same preparation, since the tools only have to come out once.