diff --git a/TODO.taskpaper b/TODO.taskpaper
--- a/TODO.taskpaper
+++ b/TODO.taskpaper
@@ -169,9 +169,23 @@
 	Sound Effects:
 		- Generic click sound (push button)
 		- Cheer/boo crowd sound effect
-		This is a borderline easter egg and a reference to SimCity
+		This is a sorta easter egg and a reference to SimCity
 		- Explosion effect (for bulldozer)
 
+Performance:
+	Issues:
+		- Seeing up to 32 ms in update on framework-release?
+	Structural improvements:
+		- Button to clear/thin debug buffers?
+			Take every nth to reduce counters to past 100 measurements
+		- Disable some timing code in release mode?
+			Needs some way to enable it.
+		- Avoid redrawing tiles every time?
+			Draw tiles once
+	Instrumentation:
+		- Time individual sections of update loop
+		- Time simulation
+		- Time each engine?
 Other features:
 	Accessibility:
 		- Verify contrast
@@ -239,7 +253,13 @@
 			May be due to a quirk of my Linux setup
 		- Weird ImGui crash:
 			dotnet: /home/alys/repos/outside/ImGui.NET-nativebuild/cimgui/imgui/imgui.cpp:6293: bool ImGui::Begin(const char*, bool*, ImGuiWindowFlags): Assertion `name != __null && name[0] != '\0'' failed.
+		- Crashes after exiting a game.
+			Seems to be a draw issue (Batch hasn't begun.)
+			In Area renderer?
+		-
 	Misc:
+		- Starting a game after exiting a previous one doesn't really work, afaict
+			Also crases, but I suspect the crash isn't related.
 		- Events may not be deleted
 		- Exits are messy (does Encompass add threading?) @done(2021-11-28)
 			Appears to be fixed by using Game.Exit