A simple custom block delivered in a plugin.
Blog
Truncated Archives Widget
A variation on the core Archives widget where it is like a yearly list in addition to the months of the current year.
Change post order by category
Order a specific category by date, the rest alphabetically.
Set recovery mode email address
Change the recovery mode email address to which the fatal error emails are sent to, instead of bothering and potentially confusing the site admin.
CTA over hero image on inner pages in Essence Pro
Add a CTA on the Essence Pro hero image on inner pages (i.e. not on home page).
Staging site without uploads
With two defines and a plugin you can work on a staging site without editing the database or copying uploads.