"It's No Big Deal". I say that so often. In fact, I have numerous unintentional "Catch Phrases" that I tend to spin off at totally inappropriate moments - much to the chagrin of my Parents. Besides that phrase, I also say: "Aww, crud" when something isn't working correctly or when something goes horribly wrong, "Alright, bye for now" when I'm leaving a conversation (either on the telephone or in person) and "You know" in the middle of almost every sentence that comes out of my mouth.
So, do you have any Catch Phrases? What things do you say far too often?