diff --git a/notes.org b/notes.org
index 06cebf2..f5eff0d 100644
--- a/notes.org
+++ b/notes.org
@@ -235,3 +235,9 @@ const Me = ExtensionUtils.getCurrentExtension();
 #+END_SRC
 
 The absolute path of the an extension: `Extension.dir.get_path()`
+* Misc HowTo
+** Defer an execution of a function
+[[https://developer.gnome.org/meta/stable/meta-Utility-functions.html#meta-later-add][~Meta.later_add~]] (assoc: ~imports.mainloop.timeout_add~)
+** Increase mutter log verbosity
+~Meta.add_verbose_topic(Meta.DebugTopic.FOCUS)~
+~Meta.remove_verbose_topic(Meta.DebugTopic.FOCUS)~