Al: All right now, next up... Next up, we're, uh, we're gonna look for the greatest source of energy loss, air leaks!
Tim: You can usually find one underneath the front door.
Al: That's right. A simple way to fix that, put in a door sweep as a barrier.
Tim: An easy do-it-yourself fix.
Al: Let's get to work.
Tim: Ooh, Al, I see another draft. [sighs] It's a cold one. [drinks beer]