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.
The magic combination of things that work for me:
Regular exercise, i like running at least 5 days a week, tabata/endurance depending on the mood/energy levels.
Piracetam
Very strong coffee in the morning
Clear goals of what i want to accomplish
No sleep debt, and sufficient sleep everyday.
Last one is the hardest, but the weeks that manage to get enough sleep, i get things done like an animal.
Are you worried about caffeine addiction at all? My understanding is that once your body gets used to it, the coffee is really only bringing you up to what would otherwise be your baseline.