“I’m not a witch, I’m your wife!”
Not that I’ve ever had occasion to say that.
How about “Get used to disappointment.” Appropriate for this board. 
That’s IMDB’s page of quotable quotes from the movie and it’s practically the whole script.
It doesn’t get much better.
No one has even invoked “To the Pain!” or “Wuvvv - Twue Wuvv…”
Someone should start a thread about what movie has the most quotable quotes - I think **Casablanca **may have a place in an argument vs. The Princess Bride but not many others…
Hmm, I like:
“My way’s not very sportsman-like, is it?”
or maybe:
“I’ll explain and I’ll use small words so that you’ll be sure to understand, you warthog faced buffoon.”
Drop. Your. Sword.
“Hello. My name is Íñigo Montoya. You killed my father. Prepare to die.”
Another one custom-made for Great Debates:
“Truly, you have a dizzying intellect!”
“Just wait 'til I get going!”
Now, where was I?
Australia.
That’s the one I use throughout daily life.
“I wonder if he is using the same wind we are using?”
Also, periodically I like to shout, “The Cliffs OF INSANITY!”
Every time I have to lift something heavy, I call out for a brute squad. Disappointingly few people seem to get it.