I'm not a cursor...
I do find it interesting what people curse by, though. For example, the French curse with the church (Tabernac, Sacrebleu, and the like), Germans curse with poop, and Americans curse with sex. I've heard many times that people curse with that which they fear, or is deemed inappropriate.
This is, I think, part of the genius of Will Ferrel in his movies. He makes his cursing absolutely ridiculous. "By the beard of Zeus," and "Great Odin's Raven!" are examples. Most people think he's being stupid, I think he's making a pretty good statement.
I like to improvise cursing. For example, every time I see a post by Andronicus, I think, "Jebus with a chainsaw, removing Petra's leg." The more ridiculous, the more purpose the curse serves. Make it stupid funny, you'll feel better, and those within earshot will, too.