Okay, I am so totally supposed to be going to bed, but how could I resist the chance to squee over Sam? It's just not possible. So...

From Space Race:
Warrick:"A complete operations manual for the Seberus. I had it translated for you."

Sam: "Thank you."

Jack: "That's not our language."

Sam: "It's mine, sir."

Also her little "Indeed" to Teal'c after she rescues him from having to do the whole diplomacy thing is too cute for words.

From Lost City:

Sam: But you did pack the Hazmat suits for us. My guess is you knew the condition of the planet and you knew that we would have to go down there.

Jack: Then you know more than I do.

CARTER: No, sir, I don’t. Sit down and take a look...That’s an order.

(It's all about her delivery and the look on her face in that one)

From The Pegasus Project:

McKay: I am just saying …the yield calculations can be extremely tricky if not borderline impossible. You may need me.

Vala: Colonel Carter said as much.

Sam: Ooh…we weren't going to tell him that.

Okay, I could do at least a dozen more, but I really have to go to bed now.