As an academic I used to scorn productivity techniques and gimmicks that I associated more with the world of business. My time management skills were not all that great either, and I could get away with it up to a certain point because I could write fast when I needed to. I think this might have caught up to me in the late 90s or so. I was still producing articles, but longer projects became more difficult to manage. One book never got written and ended up as a series of articles instead. Another took several more years to complete and appear in print than I would have wanted.
Now I think that the source of an idea doesn't matter so much. I have my own "business" to take care of. They might need to be adopted to academic realities, but a good principle of work is a good principle, period.