diff --git a/TODO.md b/TODO.md
index 4452bab..fe74173 100644
--- a/TODO.md
+++ b/TODO.md
@@ -9,6 +9,7 @@ Notes for "next time".
 
 ## v4
 
+* Maybe add some 24mm buttons to the right panel now that there's more space?
 * Try making it so top plates are bolted in from the side of the frame rather than the top
     * I'm thinking of abandoning this, because it makes the frame more complicated to have a portion of a column rather
       than the full column, but I'll keep it here for a bit longer