diff --git a/TODO b/TODO
index 42b5802..bb6cbe7 100644
--- a/TODO
+++ b/TODO
@@ -9,5 +9,7 @@ TODO:
     * if we add a new parent book with sub-books into a series, with parent * book as 'null' sub_book_num, all the sub_books should be added somehow into series - but cant input numbering on parent book, so
         - don't allow adding parent, use a pop-up saying, add the first-child, and then auto-number from there
 
+    * if change author and then click edit link, it could warn you before letting you change to the new url
+
     * consider removing all direct sqls and using ORM properly:
         - grep 'with db.engine' *.py