Do it once, do it right.
Plan the work, work the plan.
When I go in to paint somebody’s house not only can they expect an excellent paint job, but the work area will be cleaner when I left than when I began. If there’s time and budget I will clean your windows.
Never start a job and leave before finishing it: one job at time, begin to end. Next. No interruptions during work to go to Home Depot: have your material before you start. Paint when you can, late into the night, or the crack of dawn. Work alone, piecemeal. Slowly but steadily. No one has to leave the house. Work quietly, don’t chat, and play oldies at a low volume.
Roll on, brush off