diff --git a/TODO.md b/TODO.md
index 7dfd67f1911bd6c9a648b1692be34104d851283d..159e1c7cfa6c2164aa20b2e044d5ebb045f5c2c3 100644
--- a/TODO.md
+++ b/TODO.md
@@ -3,3 +3,8 @@
 * Document [creating an EPUB](http://tex.stackexchange.com/questions/1551/use-latex-to-produce-epub)
 * Adapt the jQuery UI tooltip hack used for the overlib replacement with
   tex4ht to upstream tex4ht.
+* Here's a cute idea: it would be great if copyleft.guide/LABEL from the
+  LaTeX sources always went to that place on the HTML version on
+  copyleft.org/guide/  I set a few of these up by hand already, but perhaps
+  there's a way that tex4ht could dump an list of URL redirects automatically
+  when it builds the HTML.