Long-term memory is a powerhouse of human cognition, helping us to solve problems, make sense of new information and look things up. But storing things securely in long-term memory can be really hard, particularly for students who have to remember lots of new information in lots of different subjects. Spaced-repetition is a solution to this problem. It is one of the best-evidenced findings in cognitive psychology, and makes remembering things much easier and quicker, but despite this it is not often used: in fact, it has been described as a ‘case study in the failure to apply the results of psychological research’. This presentation will give a quick overview of spaced-repetition research, and then focus on some practical advice about how you can integrate a spaced-repetition flashcard system into your teaching & planning.