One. All or nothing days

The plan was eight hours. You start at eleven instead of nine, so the day is already spoiled, so you may as well begin properly tomorrow.

That arithmetic is doing something specific. It converts a partly good day into a completely lost one, and it does it several times a week. Two hours is not a failed eight hours. It is two hours.

The all or nothing rule always sounds like high standards and always produces less work. That is worth sitting with, because it is the opposite of what it feels like from the inside.