Here's another thrilling editing experience (we editors do have exciting jobs!):
"I mostly make dinner at home. I'm not that great a chef," she said, "but at least no one has to tip me."
I made up the sentence, but it's modeled on one I came across in editing.
Now I probably wouldn't edit this in someone else's copy, but I would in my own story. I want sentences that are clear and decisive. And the "no one" clumsily adds another "character" to the line. There's "I" the cook, and presumably "no one" is a reference to the family who is eating that mediocre meal. But the family isn't in there. Not a big deal, but if I'm going for clarity (that is, any ambiguity is intentional, not accidental), the subjects and verbs should match up and the pronouns especially (and "no one" is sort of a pronoun here) should have an antecedent earlier in the paragraph.
How would I fix this? I'd probably make the whole sentence about "I"--
"I mostly make dinner at home. I'm not that great a chef," she said, "but at least I don't expect a tip."
That way, the sentence is unified-- it's all about "I", and there isn't the introduction of someone (okay, "no one") else in the second clause.
Just a minor point. But sentence-consciousness is a valuable approach to self-editing. What does your sentence SAY? And what might trip readers up, if only momentarily?