Editing Make-Up

I missed writing group last night due parental obligations. I missed the first editing "class." Sara is awesome and agreed to meet with me today for an impromptu make-up class so I won't too terribly far behind the others. She is basically outlining a technique for editing. I'm curious because I loathe editing and anything to help make it easier or more enjoyable is a plus.

I have two or three pieces I can practice one. I'm not sure which one I want to use.

Demons vs. Ghosts