I suspect you're searching in the wrong branch of the solution tree. Brains, you see, work in strangely similar ways to that of other muscles in your body. You can certainly get "quick fix" improvements, but over the long term, they will never, ever get anywhere close to organic incremental gains built under exercise, and regularly pushing your limits.<p>However, just like with body building, there are instruments for accelerating this growth:<p>-Lumosity (www.lumosity.com) is to brain building what a bench press is to muscle improvements. In a 30-minute daily session, your brain is exposed to 5 different games, each exercising general brain plasticity, and specific muscles (speed, flexibility, memory, whatever you think you could use). I'm using this for 2 months now straight, and their pricing is terribly, terribly off compared to the returns I'm getting.<p>-If Lumosity is for building the general hardware, Spaced repetition is the enabler for installing software for long-term instant recall. Supermemo, or other SR products can help; specific areas usually have their own SR solution already.<p>-Language: of all the disciplines I've sucked up so far, nothing has changed my mind, and worked on my brain more, than acquiring a new language (preferably from a conceptionally different linguistic branch -eg. I'm learning Japanese; Chinese could also prove to be profitable in the near future)<p>Hope this gets you started, and feel free to ask any questions (my e-mail's in my profile)