Managing money doesn’t have to be complicated! This video breaks down 10 simple rules that can fit on a 3x5 index card to help you master personal finance. Learn how to save 10-20% of your income, pay ...

(Class Responsibility Collaboration card) An object-oriented design method that uses ordinary 3x5 index cards. Developed by Ward Cunningham at Textronix, a card is made for each class containing ...