diff --git a/TODO b/TODO
index 16618c6d2c6019b79e48eed641a03d4ee94aad44..49a00833d369ffd2854e0abe6ef8e66e10c9958e 100644
--- a/TODO
+++ b/TODO
@@ -1,5 +1,7 @@
 Roughly in order of importance.                                     -*-org-*-
 
+* Document the order of sites/orbitals in finalized builders
+
 * Make kwant run on windows
 
 * Implement "lead freezing"
@@ -91,3 +93,5 @@ Roughly in order of importance.                                     -*-org-*-
 
 * Speed up kwant.contrib.digest
   by using SipHash and Ziggurat algorithm in C/Cython
+
+* Add a test of kwant that verifies QHE conductance quantization