A careful study of various productivity methods can even leave you confused. A school of thought says do the hardest tasks first, another says do the easy things first.
Some methods are even so complicated that I doubt that it would actually make you more productive in practise.
I think maximising productivity begins with you, study yourself. What makes you tick? What sets you up to do your best work?
Start from there, work your way up. Nobody should know you more than you.
