Why We Always Switch Productivity Methods Before They Stick, According To Science
blog.trello.com/how-to-stick-with-a-productivity-method
What Jamie wrote
I've talked to a lot of friends that have tried several or even dozens of productivity systems.
First things first: Take some comfort in the fact that you definitely aren’t alone. Many of us hop around and test the waters of various systems for getting our work done.
One of the best things I ever did was decide to commit to GTD as a long-term investment as well as OmniFocus and not look around at other options. I felt that expertise and depth in one was more important than trying dozens of options fiddling with what might be best.