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.
Sulbutiamine. I don't know whether it will return measurable results for typical biochemistries or not, but I'd very much like to know. I'm also unsure what the test procedure for "reduced mental fatigue" would be like. Maybe give subjects control over their breaks and stopping point for a task, and measure their persistence?
Anecdote: I've tried out sulbutiamine (250-400 mg mixed with 2g piracetam) from smartpowders and didn't notice a difference -- certianly not the momentous results you obtained. However, I'm not diabetic (just fat, quick to sweat, and tired after eating).