Only Leonard would use a light saber to light up an otherwise dark Penny's apartment. Wow we wish we could embrace being this nerdy.
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Sheldon and Leonard look extremely shocked as they enter Penny's messy apartment. Sheldon is extremely bothered by how messy she is.
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Sheldon and Leonard attempt to move Penny's delivery package up several flights of steps.. It really is a shame that elevator is always out of order.
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The Big Bang Theory Season 1 Episode 2 Quotes

Leonard: If you don't have any other plans, do you want to join us for Thai food and a Superman movie marathon?
Penny: A marathon? Wow, how many Superman movies are there?
Sheldon: You're kidding, right?

Excuse me, explain to me an organizational system where a tray of flatware on a couch is valid? Now, I'm just inferring that this is a couch, because the evidence suggests that the coffee table is having a tiny garage sale

Sheldon