Do not delay what you can do today until tomorrow. 

The chances are you won’t do it then either.

If it isn’t a priority today, that is unlikely to change tomorrow.

Unless it’s due tomorrow, of course.

Better to spend the time figuring out why it’s not a priority, and whether we need that to change to reach our goals than to stress ourselves further by pushing back deadlines and shoehorning in work. 

It is usually more useful to belabour our priorities than belate our work.