How big an influence have The Simpsons had on us?

The Simpsons just hit a milestone this past Sunday: 600 episodes. It was also the XXVIIth Treehouse of Horror episode. The Simpsons have had a huge impact on pop culture. So, big, in fact, that when E! News put together a list of the top '90's TV Catchphrases, they had two in the Top 5!

Here's what they are:

5. "The truth is out there."

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4.

3.

2.

1.

I catch myself using that phrase all the time. What '90's TV catchphrase do you use a lot?