diff --git a/chapters/fees.adoc b/chapters/fees.adoc
index b90a7797..f3226f43 100644
--- a/chapters/fees.adoc
+++ b/chapters/fees.adoc
@@ -1,3 +1,9 @@
+//FIXME
+// - Economic incentives for segwit
+// - RBF (opt-in, full)
+// - CPFP
+// - CPFP carve out
+// - Package relay
 [[tx_fees]]
 ==== Transaction Fees