The solution to problem one is to always have a means of taking notes, one which you will definitely revisit. This frees you from wanting to focus off-task when you need to be on-task, and it allows you to revisit and refine your thoughts
This is exactly David Allen’s GTD mantra. But a number of creativity books I’ve looked at talk about the importance of “giving yourself permission” to have ideas, part of which means having the means to record them wherever they happen. I found the number of ideas I have started to increase once I got into this.
Interesting, and that's probably where I heard of it, through second-hand sources. I think it's very similar to (what I understand to be) a fundamental concept of meditation: that when a thought pops into your head, you acknowledge it, and put it aside. The notebook thing seems to be the same concept on a different level.
This is exactly David Allen’s GTD mantra. But a number of creativity books I’ve looked at talk about the importance of “giving yourself permission” to have ideas, part of which means having the means to record them wherever they happen. I found the number of ideas I have started to increase once I got into this.