"Bread has way too much carbs, I'm not eating that!".  Grammar Nazis are my people. Punctuation can go outside of quotes, though. OP didn't need the period here, but punctuation goes outside of the quote if it's not a comma or period and if it affects the quote. For example:  Was she right when she said, "We are eating"?  The question mark goes outside the quote because to put it inside affects the quote i.e. it wasn't a question. In OP's case, the exclamation mark can be used within to quote because the quote was an exclamation and to end the sentence.