Guidelines used to populate this list:

• No packages, stock Emacs only.

• No steep learning curves. Learn each feature in under two minutes or bust.

• No gimmicks. No doctor, tetris, snake, dunnet, zone or butterfly.

• Just the deltas. No commonly mentioned packages like flymake, doc-view, outline-minor-mode or eww/w3m. Nothing that Emacs brings up automatically or a nonspecific Google search gets you.

• Assume a modern Emacs, 26.3+.