diff --git a/TODO.txt b/TODO.txt
index 0d64bc9..fb71952 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -4,4 +4,6 @@ Rename Seq2 to Seq
 Document Seq
 Should MakeState be private now that there's Run?
 What's Megaparsec got that we ain't got?
-Add and benchmark naïve Seq
\ No newline at end of file
+Add and benchmark naïve Seq
+chainl
+whitespace handling