the best way to choose what to keep and what to throw away is to take each item in one’s hand and ask: “Does this spark joy?” If it does, keep it. If not, dispose of it. This is not only the simplest but also the most accurate yardstick by which to judge.
Amazon | The Life-Changing Magic of Tidying Up:...
Optimized studying based on the forgetting curve vastly improves memorization. - What is reminDO?
Memorize 8