I just love this episode. Chandler is incredibly funny while he deals with his very odd roommate Eddie; almost every word coming out of Chandler's mouth is incredibly funny. He tries time and time again to get through to Eddie, but every time he thinks he's succeeded it turns out Eddie has chosen to forget about the whole thing.
The storyline ends with Chandler locking Eddie out of the apartment, and when Eddie reminds Chandler that they are roommates Chandler says he already has one. Joey turns around in his recliner and waves hi. A wonderful reunion between Joey and Chandler.
This episode also shows the first glimpse of Monica's future love for Chandler, when she watches him sleep with a loving face.
And speaking of the girls... They read the book "Be Your Own Wind Keeper" and become obsessed with it. It's a book about female power, filled with metaphors about wind, lightning and other things one might find in nature. It results in some very comic arguments between the girls where they throw similes from the book at each other left, right and center. Though the funniest line is probably Rachel saying to Ross that he's stealing her wind, and "how do you expect me to grow when you won't let me blow?", to which Ross assurs her he has no problem with that.
A classic episode from season two.