Costume designer Debra McGuire has stated that the yellow strapless dress worn by Rachel in this episode is the piece about which she has received the most questions from fans seeking to buy one of their own, even many years after the series' end. As the fashion label, IDOL, has long since gone out of business, she advises those desiring the outfit to bring a screencap to a dressmaker and have one custom-made.
When Joey is in the door of their bathroom talking to Chandler in the bathtub, it's a rare glimpse at the 4th wall of the guys apartment that's never seen.
Near the end of the episode, Rachel mentions the song "With or Without You." It was the song first played in The One with the List (1995) (S2E8) and later as background music in The One Where Ross and Rachel Take a Break (1997) (S3E15).
This is the only episode of the series to directly mention the World Trade Center (though it had been seen several times in transition shots)--this happens when Ross says that a British pub at the World Trade Center has a particular brand of beer (Boddingtons) from England that the friends loved.
First episode to use the shortened version of the theme song.