Mostly Simpsons stuff. a lot of "d'oh!"s, "That's my re-ward!"
Looooooooots of Blues Brothers quotes, now that I think of it.
"Dry White Toast" (in a Chicago accent)
"Four fried chickens and a coke!" (in a Southern accent)
"I've always loved you" (when the Nazis are falling to their doom)
My mom has always said "Mister man!" and it wasn't until recently that we realized it was from Blues Brothers...I say it too.
"The new oldsmobiles are in early this year"
"A lot of space in this mall"
From Spaceballs:
Ludicrous speed!
From Dr. Strangelove:
"The big board"...& "our precious bodily fluids"
Funny, I started out writing this thread thinking I didn't quote much from movies and such, but I guess I do.
ETA: Oh and just about any line from V for Vendetta.
"Nazis, I hate these guys" from my favorite movie, Indiana Jones and the Last Crusade