If you don't use Emacs, what do you use?

Visual Studio? What if you are on a Mac? Xcode?, what about linux? Code blocks?

And then what about email and tasks? Gmail? Outlook? Wunderlist?

And notes? Google Keep? Evernote?, wait, no Onenote!, but then they dont have a linux client.

What about file management? Total commander on a PC?, Forklift on a mac? and mc on Ubuntu?

What about sharing settings and shortcuts between all these across multiple OSs?

I use Emacs for all this and it works the same on every OS.

It's a portable OS/Lisp Machine.