But, I dunno, maybe it's that I'm older, or that I've gotten accustomed to internet discourse, but grammar errors just don't bother me so much anymore. In the newspaper, sure--but in casual correspondence and fiction, no. Increasingly I regard grammar and punctuation as arenas of artistic achievement, open to broad usage and interpretation. And the one issue I've come around furthest on is the comma splice.
To wit, a sentence like this...
She stood up, she brushed herself off, the audience applauded.
...which is technically incorrect. The proper punctuation would be...
She stood up; she brushed herself off; the audience applauded.
...because you're supposed to separate independent clauses with semicolons, not commas, as any high school English teacher will tell you, and probably has, in red Flair pen.
But one legitimate use of the comma is to separate items in a list, and in my view, an independent clause could be considered an item. So what we have in the first example is a list of clauses (or, specifically, of actions and events) separated by commas. Now, this may seem like a stretch, but it allows the writer to acccentuate the separateness of those events without losing the impression of brisk narrative flow. In other words, in sentence #1, these three things occur in a kind of rolling fashion--we perceive them as one event with three parts, rather than merely as three related events, as the second sentence would suggest. The words are the same, the connotation is different. Depending on the context--who the woman in the sentence is, what she's doing, who is watching--a writer might want to choose one over the other.
I suppose I support anything that allows the writer a greater range of expression. With this greater range, of course, comes greater difficulty, since you're undermining the foundations of written language--you have to be more skillful at creating a believeable, sustainable universe for the reader, without relying as much on the basics. But the tradeoff is worth it, in my view.
So there you go. Comma splice good. Take that, Miss Peachtree!