This little gem was left in my comments by Johana Hefer who graciously allowed me to share it with you. Her editing tip is so simple, I wonder how I, who often google “writing tips”, have never come upon it before: read your story (or chapter, if you are editing one chapter at a time) backwards.
Told you it was simple! But what is more important is that it is helpful; sure, you won’t be able to notice plot holes this way, but you’ll spot the typos.
Thank you, Johana!