A well-known trick for memorizing things verbatim is to make them rhyme and put them in a song. Most people reading this know the alphabet song, for instance, and you can use this to learn US states and capitals or chemical elements.
Maybe it would be possible to do this without the rhyming, by using text-to-speech software to convert the information into audio and then playing that over vocals-free music. Instead of text-to-speech software, you could buy/get an audiobook with the information, if one exists. It might be possible to use this, for instance, to memorize multiplication tables up to 100 easily. I haven't yet tried any of this.
I also intend to research whether hearing something repetitively while sleeping helps you to memorize it verbatim, and whether that would harm sleep.
Relatedly, I noticed recently that I knew the words in a 14-minute ASMR video almost verbatim because I had listened to it so often. So one idea is to pay someone skilled at producing ASMR to read you things you want to memorize.
See also the digit-sound method: http://www.decisionsciencenews.com/2012/01/06/how-to-remember-numbers/
(I have the vague intention to create a handy tool based on that, which I'd call digimaphone: http://digimaphone.com )
Thus spake Eliezer:
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.