4x09 "The One Where They're Going to Party!"

Chandler and Ross's friend "Gandalf" is planning to come to town. They are very excited until he cancels. When they're forced to try to have a fun time on their own, they're forced to realize that they're becoming older and no longer enjoy the party scene. Monica has to choose between a head chef job and catering with Phoebe, and helps Phoebe with ideas for a business of her own. Rachel gets "hired" as the assistant buyer at Bloomingdale's but doesn't get the promotion because her supervisor dies before she turns in the HR paperwork.