I'd add a 4th point: accept a wider definition of work when counting your hours.
A lot of us are lucky enough to have knowledge based jobs, which require mental tasks of solution design and decision making that are hard to quantify. I regularly get ideas when walking, cooking, driving, etc... and then spend time thinking through a work problem and taking notes. Several times a day I go for a short walk to clear my head of distractions and regain focus, That would be hard to quantify to a theoretical bad manager who wanted you to count hours but for many it is an essential part of knowledge work.
A lot of us are lucky enough to have knowledge based jobs, which require mental tasks of solution design and decision making that are hard to quantify. I regularly get ideas when walking, cooking, driving, etc... and then spend time thinking through a work problem and taking notes. Several times a day I go for a short walk to clear my head of distractions and regain focus, That would be hard to quantify to a theoretical bad manager who wanted you to count hours but for many it is an essential part of knowledge work.