This is so simple and obvious I’m embarrassed to post it. But that never stopped me before! 
This morning, before church, I was working on a blog article. The article included headings and subheadings five levels deep. I found myself hitting the # key multiple times for each subheading. Then it hit me, “Mosbacker, you idiot, why don’t you have text replacements set up for this?”
Good question. So, I set up four simple text replacement shortcuts: h2 = ##, h3 = ###, and so on. This is much faster.
Duh. 
This idea may help someone else. You don’t have to admit it if it does. 