diff --git a/README.md b/README.md
index 1860d65..21f00b1 100644
--- a/README.md
+++ b/README.md
@@ -28,3 +28,9 @@ RANGE_NAME = #METOO
 5. Give the service account's email (read) access to the sheet
 
 6. `python app.py`
+
+## TODO
+
+- Code cleanup: separate files
+- Database caching: don't re-request google sheet data every time
+- Error handling: it shouldn't ever crash on user input