I've been battling with this issue for quite sometime now. I did not find the 'ultimate' solution (probably because there isn't any but self-discipline). One im

I've been battling with this issue for quite sometime now. I did not find the 'ultimate' solution (probably because there isn't any but self-discipline). One important tool that I found most helpful was `Reminders` on OSX, specifically the fact that I can put an alarm (one-off or recurrent) on each task. Given that Reminders are synced across devices (iPhone, iPad) and are available in the notifications center this helps me a lot when I'm on the move. One downside of using this method or any other is that your capacity to memorize the due tasks disappears as soon as you write them down. I'm not sure what's the psychological/neurological explanation for this, but it's true. If your task list is not that big, your brain is the best way to keep track of them. Otherwise be prepared to skip a few as soon as jot them down.