At the end of every month, take out everything that you haven't used in the junk drawer and throw it away. If you keep it more than two or three months and haven't used it you are not going to use it again. This includes throwing out broken pencils, notebooks that are used up, pens that don't work, batteries that you don't know if they work, pieces of toys that have gotten stuck in that drawer, and coupons that have expired.
