[gmku]

"Living the dream," is sometimes my smart-ass response.

Or, "Another sunny day in hell."

What are some other quips I can use in casual reply to this question posed to me almost daily by everyone from mail room clerks to the next-door neighbor?

Can't be too outlandish or esoteric or obscene for general use, you understand. Something that sounds sort of "every man" but that's also a bit creative or interesting.