I'm interested in seeing statistics about what LWers do in their daily lives. In that vein, I'm thinking of a survey about what lifehacks the average LWer uses. This could help people decide which lifehacks to try out.
For instance, most readers of this comment probably know what SRS, nootropics, n-back, self-tracking, polyphasic sleep and so on are, but I'd guess less than 10% of you currently practice each. To reduce the barriers to entry to people actually trying to improve their lives with these tools, we need to get some quick clues about what's worthwhile.
The survey could also measure the reasons why people don't employ certain lifehacks. Is it because they're lazy or because they doubt the lifehack's efficacy or because they've never heard of the hack?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
If continuing the discussion becomes impractical, that means you win at open threads; a celebratory top-level post on the topic is traditional.
Poster's Note: omg, it felt so weird typing "2012" up there.