In Rummy, the discard pile is an important component that new players frequently ignore. It provides information on the cards that are available for play as well as the popular slotscards that your opponents might be gathering. Players can learn about the tactics of their opponents and modify their own by closely observing the discard pile. An opponent may be working on a run in spades if, for instance, they routinely discard hearts when picking up spades. Also, proper disposal of your own waste is just as crucial.