[LeonB]

This is good advice. But it conflates two different (but related) ideas from Dave Allen: "Next Action" and "2 minute rule".

Both are fantastic ideas. I recommend going to the source to learn about these, the book "Getting Things Done" and the many writings specific to that system. It is very influential, so much so, that many of the things influenced by it no longer realisz their ideas have come from Dave Allen. It just seems like a universal idea that everyone knows with no particular source, like the Cerulean of the sweater in "The Devil Wears Prada", it came from somewhere.