Monitoring what has been thrown away not only aids in efficient planning but also enables you to predict which cards may still be up for drawing. When it comes to melding, many players also undegame exchange 567rvalue the significance of timing; if you reveal your melds too soon, opponents may learn important details about your approach. Keeping valuable cards for too long in the hopes of making melds with them is another common error made by players. While chasing down sets or runs is important, holding onto high-point cards can backfire if you can't meld them before another player goes out.