How do you prioritise your tasks? What do you consider most important?

I prioritize my tasks by what I believe is more accessible & what is easier for me to knock out.
I normally go by what time availability that I have throughout my day.
My M-F days are typically unavailable between 10-4.
The most important tasks are typically the tasks that take a lot more of my time to do. Such as building my resume, updating my portfolio, doing laundry, helping son with his homework, studying, etc.