This is a great question. A quick guide (or link to one) on how to do easy journaling/analysis using Google Docs or similar simple tools would be great. I just started a food/biojournal myself. There's probably one or more out there in the self-analysis literature, but I haven't seen it much discussed here.
I was reading the NY Times article on Decision Fatigue, when I came upon a hypothesis I would like everyone's feedback on.
I take as a premise that there seems to be a high prevalence of akrasia in the lesswrong community.
I also take as a premise that the sequences give us a more-than-usual detailed model of the world, one that presents us with more possible trade-offs we could be making in every day life.
So the conjecture that by trying to reduce bias and perform a lot of cognitive calculation, we effectively spend large parts of our days in a decision fatigued state, leading to akrasia problems.
Does this sound (un)reasonable? Why? How would you go about turning this into a testable proposition?
UPDATE: Anna Salamon has put up a detailed poll here that may shed some light on the situation. Please take some time to fill it in.