In the "Least Favorite Episode" thread, Paige says what she thinks is Elaine's best parting line.
Sounds like a new thread to me (thanks for planting the seed, Paige!)
My favorite parting line of all times is when George's pianist girlfriend finds out that it was Elaine who laughed during her performance. George says something about having hand, and she says, "And you're going to need it"
What's yours?