Focusing on "more efficient" in "better":

- emacs: works for me to code in R, python, connect to remotes, etc

- keyboard shortcuts: got started with them early, and never looked back. Bonus: linux/macOS/emacs text navigation works across all of them (ctrl-f, ctrl-b, ctrl-a, ctrl-k, alt-delete, etc)

- git: managing file versions and file diffs (!)

- GitHub: terrific for project management, even when I'm the only one on the project ;)

- CLI utilities that I love:

    - ag, a better "grep"
    - fd, a better "find"
    - tldr, a better "man"

My dotfiles and new box setup: https://github.com/pavopax/dotfiles

CLI tools:

https://github.com/ggreer/the_silver_searcher

https://github.com/sharkdp/fd/

https://github.com/tldr-pages/tldr

EDIT: formatting