The stock footage of Ted's kids saying "What?" is from the Pilot episode, shot in a different room and with different costumes than all other stock footage of Ted's kids.
The gang uses a Tim Horton's coffee can as an ashtray about halfway through the episode, and the Tim Horton's name is clearly shown in the trademark gold oval on the front of the can. Near the end of the episode, the gang is back on the roof, and the "Tim Horton's" has been removed from the gold oval.
Marshall: Robin don't smoke that cigarette!
Marshall: We're all watching, and we're very impressionable, and I swear to God, if you smoke, we're all gonna smoke!
Robin: You guys are watching?
Lily: (Raspy-voiced) We sure are, honey. And you look fabulous!
Lily: That Don guy, what a tool.
Robin: No, he actually apologized after.
Lily: No, when he stood up those briefs were pretty revealing. You should date that guy.
Robin: Yeah, not in this lifetime.
Old Ted: They were dating within three months.
Ted: Dude, if you don't stop tapping your foot, it's coming off!
Marshall: Oh, Ted, I'm so sorry. Maybe I should move it closer to your ass!
Lily: You smoked.
Marshall: Yes, I smoked! And it was my third of the day! You know what that means? I'm a smoker now! It's all over! I even bought a pack on the way home, and a lighter, and a Vikings lamp which has nothing to do with anything but I saw it in the window and I liked it.
Lily: Damn it, Marshall! We already have four Vikings lamps, and smoking kills!
Robin: If I can't get my best friends to watch my show, who's gonna watch?
Marshall: Lots of people. You got bed ridden insomniacs, bums waiting outside of department stores, people waiting in ERs where you can't change the channel because the TV's in a little cage.
Lily: Oh! Do you have any stalkers?
Robin: Yeah. But even Leonard won't watch my show.
Barney: Arthur Hobbs hating Marshall, that's no big deal, he hates everybody. It's the people he doesn't know are the ones he cuts loose, like what's-his-face.
Marshall: He fired what's-his-face, Ted! And what's-his-face was invaluble!
Ted: Look, I understand why you're upset, but it's not worth killing yourself over.
Barney: Yeah. Wait until you get laid off, then kill yourself. Like what's-his-face. Although I guess now it's more like where's-his-face.
Lily: Barney, could you not bite your nails so loud?!
Barney: I'm not biting my nails, I'm trying to suck the leftover nicotine out of my fingertips!
Lily: (trying to get Robin to quit smoking) You can sleep with Marshall.
Marshall: Oh, baby, no!
Lily: Gotta take one for the team, baby.
Robin: I don't want to sleep with Marshall.
Barney: (while smoking) I'm proud of you guys! I have heard how difficult it is for smokers like yourself to quit, and on behalf of non-smokers everywhere, I salute you, and I am here to help. So hand in your cigarettes, and I will get rid of them one at a time.
Lily: (raspy-voiced) You're quitting, dollface. I know I don't normally call you dollface, but it kinda works in this voice. Dollface.
Barney: I am not a smoker. I only smoke in certain situations: post-coital, when I'm with Germans—sometimes those two overlap—coital, birthdays, to annoy my mom, pre-coital, on a sailboat, the day The Mets are mathematically eliminated every year, and, of course—wait for it 'cause Lord knows I have—pregnancy scares.
Ted: Why are you smoking right now?
Barney: I'm always pre-coital, Ted.
Robin: I can't quit right now, not before the biggest interview of my life. It's too stressful.
Barney: It's too stressful!
The Italian title is "L'ultima sigaretta", meaning "Last Cigarette".
International Airdates: Australia: April 22, 2010 on Channel 7; United Kingdom: August 5, 2010 on E4; India: October 14, 2010 on Star World; Czech Republic: December 21, 2010 on Prima COOL; Germany: February 2, 2011 on ProSieben; Slovakia: November 23, 2011 on JOJ Plus
Music: "Cigarettes And Chocolate Milk" by Rufus Wainwright (played when Future Ted was talking about when the gang had their last cigarette)