Stop org-agenda from messing up window layout

config.org

@@ -114,6 +114,14 @@ needs to be set up to install them if they aren't already.
            '(("u" "Unscheduled tasks" tags "-SCHEDULED={.+}/!+TODO")))
    #+end_src
 
+   By default, the agenda clobbers the rest of the windows in the
+   current frame, which I find a bit annoying. That behaviour is
+   controlled by [[help:org-agenda-window-setup][org-agenda-window-setup]].
+
+   #+begin_src emacs-lisp
+     (setq org-agenda-window-setup 'current-window)
+   #+end_src
+
 ** Source Blocks
 
    Pressing tab inside a source block should indent appropriately for its