[philsnow]

Even shorter:

    ZZ

"Shift z z" is one key shorter than "shift colon x enter"

[virtualwhys]

Colon? That sounds painful, map it to some single keystroke. I use back slash on my tiny cherry keyboard.

    noremap \ :

[philsnow]

Isn't backslash the default <leader> keystroke?

[virtualwhys]

yep, have leader mapped to space ;-)