If you’ve read Getting Things Done, then you know that “if it’s on your mind, your mind isn’t clear.” So what I’m about to say is certainly nothing new. The question is: have you really gotten it all out of your head?
If our brains are overloaded with to do lists and random tasks, then how are we free to be creative, or to actually think? The grocery list, that phone call we need to make later on in the afternoon, and the email we were supposed to send yesterday and forgot to are all taking up valuable mental bandwidth. There isn’t much room for the more important things.
Get it all out of there and into your preferred task system: diary or planner, to do list, BlackBerry, Google calendar, whatever. It doesn’t matter what system you use, since different people prefer different task solutions. Just be sure to get it all out of your head.
If you’re used to keeping everything in your mind, then it may take a few days to download absolutely everything into a task system and then get used to the new way of dealing with tasks. The intention is to change your previous habits and to make sure everything that needs to be done is in a reliable system, and not in your mind.
How to download tasks from your mind: