Laying down the law.

No site I work on will ever put terminal punctuation outside the quotation marks. EVER.

I have rewritten entire paragraphs to avoid situations where the terminal punctuation would make sense outside (but where block quotations do not make sense). I will fight tooth and nail over this and I will bloody win.

Other sections: Words and phrases to avoid (include "all words that end in "-ly," "very unique," and "in regards to."

(In academic writing, I use the serial comma.)