How to remember better

Ray Kurzweil is a very smart guy with an eclectic set of interests, although most of what he does focuses on intelligence - what it is, how we get it, and how machines might someday be more intelligent than us.
It's not surprising, then, that Kurzweil would find very different approaches to learning and memory.
In one article, Why One Way Of Learning Is Better Than Another, he reports that a study of mollusks confirms that the brain learns better with lots of small doses of learning over a longer time rather than intense learning in a short time. In other words, cramming for exams is not effective. (For something completely different, here's a way to learn something about mollusks from Monty Python (YouTube).)
Or, as Kurzweil discovered,  you can just spray some stuff up your nose and get smarter. - Scientists Develop Nasal Spray That Improves Memory.