Quote from Rachel in The One with Joey's Porsche
Rachel: So I still have boxes here. I still have boxes at Ross's. And I have nowhere to live. Wow, I could so easily freak out right now. Phoebe: What about me? I just found out Denise is leaving town for a while. I don't have a roommate. Rachel: Well, maybe I could be your roommate, Pheebs. Phoebe: Maybe you could be my roommate. Rachel: Well, there's an idea. Phoebe: Yeah. That would be great. Rachel: Wait. How long is Denise gone for? Phoebe: She said she'd be back December 26th. Rachel: December 26th. Maybe she's Santa Claus.