Quote from Monica in The One with the Pediatrician
Chandler: What happened to "you can't live without me four days a week"? Monica: Well, if you really think about it, I mean, four days is just not that long. I mean, I see you Monday before you go to work and then I see you Thursday when you get back and I always work late on Tuesdays, so really if you think about it it's really just one day. And well, if we can't make it one day, we got real problems, my friend.