I've often had half-finished LW post ideas and crossed them off for a number of reasons, mostly they were too rough or undeveloped and I didn't feel expert enough. Other people might worry their post would be judged harshly, or feel overwhelmed, or worried about topicality, or they just want some community input before adding it.
So: this is a special sort of open thread. Please post your unfinished ideas and sketches for LW posts here as comments, if you would like constructive critique, assistance and checking from people with more expertise, etc. Just pile them in without worrying too much. Ideas can be as short as a single sentence or as long as a finished post. Both subject and presentation are on topic in replies. Bad ideas should be mined for whatever good can be found in them. Good ideas should be poked with challenges to make them stronger. No being nasty!
Seth Roberts tracked the influence of omega-3 on brain function via arithmetic tests in R:
http://www.blog.sethroberts.net/2009/01/05/tracking-how-well-my-brain-is-working/ http://www.blog.sethroberts.net/2007/04/14/omega-3-and-arithmetic-continued/
It's a little hard to distinguish the benefit from practice and the benefit from omega-3, so ideally you'd alternate periods of supplement and no supplement.
Also, ideally you wouldn't know when you were getting omega-3 and when you were getting a placebo during the course of the experiment.