diff --git a/notes.org b/notes.org
index 4a1cf6e..0792d4b 100644
--- a/notes.org
+++ b/notes.org
@@ -6,6 +6,37 @@
 
 [2017-12-31 Sun 17:54]  I wonder if, instead of parsing the whole buffer with =org-element-parse-buffer=, we could simply work on a list of heading positions, e.g. a loop would search forward to the next heading position, then call whatever predicates it needed at the heading's position, using =save-excursion= around each function call.  The predicates would need to be updated to get their data from the buffer, instead of using =org-element-property=, but that wouldn't be hard.
 
+* Examples / testing
+
+#+BEGIN_SRC elisp
+  (org-agenda-ng org-agenda-files
+    (and (or (date :deadline '<= (org-today))
+             (date :scheduled '<= (org-today)))
+         (not (apply #'todo org-done-keywords-for-agenda)))
+    ((group (tags "bills"))
+     (group (todo "SOMEDAY"))))
+
+  (org-agenda-ng org-agenda-files
+    (and (or (date :deadline '<= (org-today))
+             (date :scheduled '<= (org-today)))
+         (not (apply #'todo org-done-keywords-for-agenda))))
+  (org-agenda-ng "~/org/main.org"
+    (and (or (date :deadline '<= (org-today))
+             (date :scheduled '<= (org-today)))
+         (not (apply #'todo org-done-keywords-for-agenda))))
+
+  (org-ql org-agenda-files
+    (and (todo "SOMEDAY")
+         (tags "Emacs")))
+  (org-ql org-agenda-files
+    (and (todo "SOMEDAY")
+         (tags "Emacs")
+         (priority >= "B")))
+  (org-ql "~/org/main.org"
+    (or (tags "Emacs")
+        (priority >= "B")))
+#+END_SRC
+
 * Profiling
 
 This basically works, as a very basic kind of agenda view, but we can already see that it's much slower (at least, for single-day views) because =org-element-parse-buffer= is slow compared to the agenda code.
@@ -303,7 +334,6 @@ outline-on-heading-p                                          3452        0.0101
 string-match                                                  4594        0.0064121759  1.395...e-06
 mapcar                                                        30          0.0041008740  0.0001366958
 #+end_example
-
 * Profiling position-based
 
 ** Macro