Mark Foster (author of the highly recommended, Do it Tomorrow) has an exceedingly simple and powerful task management system called: Final Version.
“The FV algorithm uses the question ‘What do I want to do before I do x?’ to preselect a chain of tasks from the list. What exactly is meant by ‘want’ in this context is deliberately left undefined. There may be a whole variety of reasons why you might want to do one thing before another thing and all of them are valid.”
Brilliant in its simplicity. No fancy software needed. Just pen, paper, and the desire to do something.
The title of this post? That’s advanced.