There are several ways and methods to commit things to memory. Some of these methods are very effective and when you see some people rattle off information from memory it amazes you. Whereas most of us spend so much of time trying to cram a lot of information into our brain and at the most we remember it on the day of the exam and then once the deed is over and done with, all the knowledge we acquired suddenly vanishes. In most cases no, many of us find it extremely difficult to recall needed information at the right time.
Memory is useful only if can be accessed at the right place and time.
It happens to all of us, some information that you feel is at the tip of your tongue eludes you when you need it and then late in the night it comes to you in a flash. If others are able to have memories that seem magical, we should be able to do so too. And well, nothing great has ever been achieved without hard work. So the formula is here in front of you. To how much use you put it is entirely in your hands.