A little post only for users of Linux (or other UNIX-like operating system using the X Window System) – there may be something similar for Mac or Windows, but if so, I’m afraid I don’t know what it is.
If you aren’t familiar with the Compose key, it’s time to get familiar. It’s a designated key on your keyboard, which when pressed before a sequence of other keys, will input a special character — typically a foreign character or a symbol beyond the usual ASCII range — which in some way combines these characters. This works in any program or window running on the X server!
