When you think your opponents are about to go out or when you have a good chance of forming melds, holding onto cards can be advantageous. However, there are timtoefl exam slotses when it may be wiser to fold or discard certain cards to minimize your point total if you sense that you are at risk of being caught with high-point cards when another player goes out. It takes careful observation & knowledge of your hand as well as the tendencies of your opponents to maintain this delicate balance.