What is your favorite substitution for a curse word?

Mine--->Dang!

What's yours?

"...accept no substitutes."

If I can't say it, I say nothing.

"Geez" But like Kaunisto wrote about saying nothing, I'm very well-mannered and my speech is proper at all times except when I'm alone and talk to myself out loud. And I still say "geez" or "dang it" even when I'm alone.