Álvaro Ramírez, author of Journelly and many other useful applications—a lot of them Emacs based—has a new post about a basic Emacs operation: changing focus to another window. Ramírez and I basically agree about things like this although he stubbornly refuses to admit the superiority of my method of indicating the window that has focus.
Now he has a slightly different problem. For technical reasons that you can read about in his post, he wants to be able to switch to a window in another frame. The other-window command, bound to Ctrl+x o by default, doesn’t consider windows in other frames but, of course, there’s a command for that: next-window-any-frame. That turned out to be exactly what Ramírez needed and he simply bound it to Meta+o, which is where he had other-window bound.
Like Ramírez, I seldom use more than one frame so I didn’t know about this command. If you often have more than one frame going, you may find it useful if you’re not already using it. If you’re an ace-window user, it will consider all frames by default but you can adjust this with aw-scope.