Foreshadowing: Karen makes reference to buying an island, which happens in the season 2 finale episode, "Ben, Her?".
A running joke in the series is that Karen hardly ever seems to eat, yet we see her in Taco Time with some food in front of her.
When Jack does his tap routine, he is obviously wearing tennis shoes which would be incapable of making the harsh taps sounds on the wooden floor.
This is the only episode where we get to see Gregory Hines, a professional tap dancer, profess his craft. It's also one of the final performance before his death in 2003.
The wine cooler Will drinks goes down half a glass between takes.
An alternate ending to this episode involved Bill (Neil Patrick Harris) leaving the Welcome Home project and naming Jack as his successor, claiming Jack made a better heterosexual role model than Bill.
Val appears to have moved from 15F to 12E (which actually makes more sense, given that 155 Riverside Drive is a 12-story building).
Karen says that she's hiding in Rosario's room because it's the only room Stan doesn't know about. Yet we know from the season two episode "Election" that there are several security cameras in the room. Jack even waves to Stan in the camera in the statue, so Stan definitely knows about the room.
We find out that Rob is Will's accountant.
Gretchen German, who played Carla/Carl, was mistakenly credited as "Tasha" in this episode.
Mary Pat Gleason also appeared earlier this season in the episode "Acting Out" as the Crazy Lady.
The scene where trainee Nurse Pitman (Elise Cox) is explaining how she had to keep taking her driver's license test took several takes to get through because Debra Messing kept laughing at Elise's character's lisp.
Goof: During the scene with the trainee nurse, as she explains that she has been practicing mostly on oranges, she picks up a latex glove and starts to put it on her left hand. Her right hand is bare. Yet in the very next shot, she already has a glove on her right hand, whilst still putting on the left glove.
Jack asks to borrow $100 from Will...Will says sure and hands Jack money... It's actually two $1 bills.
Grace says she and Karen have been working together for 18 months. But as of when this show airs, and according to info from previous episodes, they have been working for at least two years.
Chris Potter, who plays Michael, also played another gay character on "Queer as Folk" who was romantically involved with the character "Michael".
In this episode, we learn that Will and Grace were dating in college, but broke up for obvious reasons. We also learn that Michael started dating Andrew in January of 1997, two months after Will and Michael broke up, meaning that they had broken up in November of 1996.
The door in the middle of the hallway it now an apartment, despite the fact that a map of the building next to the elevator shows it as a supply closet, and that technically Will's small bathroom is behind it.
Will implies that he and Michael split up at the end of 1996, but when the Will & Grace show started in 1998, he said he'd only just split up with Michael.
The tune Will plays on the breadstick is the theme from the classic Canadian kids show The Friendly Giant.