Is it mission critical?
You can feel your time with anything. You can fill your time with mission, critical tasks or non-critical tasks.
If you're the captain of a seafaring ship, making sure that your engine is working is mission critical. Painting the outside of the ship is not mission critical.
Like many [[dichotomies]] This is more of a gradient.
What is the mission? This is an important question.
[[How you do anything is how you do everything]]