I've watched these two videos recently
How to Get things done which contains some tips from David Allen's book, "Getting Things Done", and the other video
How to hack your todo list which also contains some parts from the above mentioned book.
What this author suggests is writing down your tasks instead of keeping it in your prefrontal cortex, therefore you'll be more free to think about task at hand. I think I've read the book long time ago and there is some research mentioned (as in most books alike).
Except for complex tasks that need to be broken down, I almost never had the benefit of writing task to a to do list. I actually found it terrible that my brain seemed to partially forget things while relying on the list [ which I didn't bring with me or I was in the hurry and forgot to look into my phone app]. I don't know if I was biased by the content of the book or if there is some science behind forgetting tasks that you jot down on the piece of paper.
I understand that some people have a more complex day than me and need todo list for not-so-related things, but I find it somewhat scary that so many people so easily rely on something else remembering things for them.
I tried using lists because I was afraid I'll forget what I need to do. When it started bothering me, I decided not to write anything but longer grocery lists. And it's interesting how my brain started remembering things and recalling them exactly when I need them. I didn't feel my brain was cluttered, because I remembered tasks at the right time and right place[ I never thought about grocery list during working hours and vice versa].
I don't know it there is any well known research behind this "write things down to unclutter your brain"-thing, or it all boils down to poor memory or lack of commitment to remember something important ?
Side question, but related : is it even possible to quickly forget the task and leave it written on the piece of paper ?
I just want to know if this thing really works or it just sells similar books for time management.