Avoid Working When...
Look for children notes for when to avoid working.
Keep Do: Work Your Butt Off in mind.
Avoid working when: Too Tired
If you are too tired there is no point pushing further.
Being too tired is very subjective. Sometimes you will be able to go 12 hours and feel fine. Other times 8 hour day will wear you out.
Work in Flow/Work State, when you too tired this isn't flow state.
Note: On rare occasion it makes sense to make an exception and push through tiredness and work through it. However, this must be rare exception rather than a rule. Such push must be seen as a mistake that needs evaluated in retrospective and accounted for remedied in the future.
Avoid working when: Hungry
When you start to feel hungry. The hunger can easily mask itself into other emotions. From agitations to anger. Hence, do not work while hungry. Rather go eat something.
Children