I forget where I i first came across this term, maybe it was on merlins 43 folders website. Anyways it was interesting, I spent some time (hah) looking at where my time was going (i.e. what i was really interested in doing), together with what seemed to produce the most results.
So after a bit of soul searching (well as much time as you have with a 2 and 4yr old about your knees) and the discovery of where my time and attention was actually going I started to direct a bit more of it towards my work life. It was quite successful it that there were tangible outcome, and helped me enjoy my working life even more. I’d encourage others to think about doing similar in their work lives.