When you're browsing through teaching magazines and find useful ideas, you often end up forgetting about them before you get a chance to use them. In order to save these ideas for later use, cut them out of the magazine or jot the idea down on an index card. Keep a file organized by subject or topic where you can store these and easily refer to them later.If using index cards, simply file them into an index card file. If you clip the ideas from the magazine, you may want to get some cheap hanging file folder boxes. If you already have a filing cabinet at school (or at home) you may want to just add it to that.