I wrote a little flashcard script that lets me enter and later test myself on facts. If I get the answer to a question right, the delay before a repeat of the

I wrote a little flashcard script that lets me enter and later test myself on facts. If I get the answer to a question right, the delay before a repeat of the question increases. If I get the answer wrong, the delay decreases. When I read something I want to remember, I just enter a bundle of relevant questions into the program. It's helped a lot with retaining knowledge.