the most intriguing idea about GTD to me is the idea of the "mind like water". I realise I have this when I work at home, because then I simply follow my lists one by one without much time pressure.
However, at work, I feel I have to prioritise, and often I feel when I do "small" things that I should be completing a bigger and maybe more important task. Also, I get a lot of small things done whereas the big ones often take a lot of time to be completed.
Is it better to follow a list one item after another or is prioritising better? But then, what is really important right now? What is the most important thing? And this is when I lose my "mind like water".