The rule is: don’t use commas like a stupid person. I mean it.

“Wait for it,' the single dash seems to whisper, with a twinkle if you're lucky.”

“we are unattractive know-all obsessives who get things out of proportion and ar…”

“...punctuation marks are the traffic signals of language: they tell us to slow …”

“To those who care about punctuation, a sentence such as "Thank God its Friday" …”