Those of you who are just getting started with GTD, might find some of the suggested alternatives easier to live by.
For me, I find that my time is often scarce and I have to make conscious decisions on how to spend them. Most of the time it is about opportunity costs – that is, what am I giving up by choosing to spend my time doing X instead of Y. The most important thing here is to make decisions consciously. Don’t let things happen without your control – if that happens you only open yourself to disappointments.