I highly recommend use your perfect memory by Tony Buzan if you are too lazy to read a book then I suggest millionairre memory by Dave Farrow

They essentially have the same concepts but millionairre memory is in DVD form and extremely expensive if you can not get it for free via a library

I did not find any general concept in the DVD that was not in the book, however they have a lot of specific examples for different memory systems for different things that are different