diff --git a/TODO.md b/TODO.md
index 9e932bf..98df145 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2,6 +2,9 @@
 
 ## aquatic
 * `thread 'main' panicked at 'overflow when subtracting duration from instant', src/libstd/time.rs:374:9`
+* Handler: put responses in vector and send them all together after releasing
+  lock?
+* Use bounded request channel?
 * Handle Ipv4 and Ipv6 peers. Probably split state. Ipv4 peers can't make
   use of Ipv6 ones. Ipv6 ones may or may note be able to make use of Ipv4
   ones, have to check.