A place to discuss potentially promising methods of intelligence amplification in the broad sense of general methods, tools, diets, regimens, or substances that boost cognition (memory, creativity, focus, etc.): anything from SuperMemo to Piracetam to regular exercise to eating lots of animal fat to binaural beats, whether it works or not. Where's the highest expected value? What's easiest to make part of your daily routine? Hopefully discussion here will lead to concise top level posts describing what works for a more self-improvement-savvy Less Wrong.
Lists of potential interventions are great, but even better would be a thorough analysis of a single intervention: costs, benefits, ease, et cetera. This way the comment threads will be more structured and organized. Less Wrong is pretty confused about IA, so even if you're not an expert, a quick analysis or link to a metastudy about e.g. exercise could be very helpful.
Added: Adam Atlas is now hosting an IA wiki: BetterBrains! Bookmark it, add to it, make it awesome.
This list looks promising.
I have looked for several solutions for sleep logging and found nothing really amazing if you want to be OCD about details (food, mood, etc.). As for something very simple, that works only with free-running sleep, try the no-frills Sleep Chart.
By the way, I recommend experimenting with free-running sleep, i.e., go to sleep when sleepy and wake up when rested — no alarm clocks, no schedules.