Three things I that make omnipresent #emacs #exwm glorious:

1. password-store.el, which makes emacs an ever-present (even in browsers) #password manager as present and more secure than LastPass
2. built-in emms, allowing me to interact (eg play, pause, skip, random) with my music from anywhere on my computer
3. well, I thought I had a third, but I can't narrow it down now. Let's say being able to execute shell commands from anywhere, any time with C-M-& (async) or C-M-! (blocking). Or maybe being able to do a quick orgmode capture regardless of what app I'm in. OR...