The majority of our articles are long enough to need a Table of Contents. But that means that the TOC text ("Update TOC..." plus all the headings) appears as the article excerpt in Search results. I've been told to use article subtitles instead, but that's
  1. another thing we would need to insert in each article
  2. another thing to remember to update if the body of an article changes.
Ideally, more control on what goes into excerpt is needed, but at the very least, non-article text such as this shouldn't be picked up in the excerpt.