Dear redditors, have you tried any methods for improving your memory overall? If so, how did those work? Is it possible to train yourself to have a photographic memory?

After studying some for college, I came to conclusion that I could use some improvement at remembering more stuff faster. I know that there are tons of books and tutorials on that, but I thought that asking this question here would help me verify what to look for. I'd love to hear about your personal experiences in this topic.

@edit Just to make it more clear, I don't need this just for college. Since memory is something we use at nearly all times, it could be useful for most of situations.

Also, if you had any experience with memory training, let us know how good are you and how would you rate it (subjectively).