Another common error is tossing away important cards that are required for well-liked runs or sets without thinking about how it might affect your opponents' progsattkingress. If you do this, you might unintentionally assist your opponents in forming their sets & melds, which would give them an advantage in the game. Also, as the game goes on, you may have fewer opportunities to form melds & sets if you discard important cards without thinking about how doing so will affect your opponents.