diff --git a/TODO.taskpaper b/TODO.taskpaper
--- a/TODO.taskpaper
+++ b/TODO.taskpaper
@@ -53,8 +53,15 @@
 			- Adjust odds in preserve @done(2021-02-20)
 			- Dialog
 				- Assistant warns when a lot of the map has been made into preserve?
-				- Congratulations when reaching a majority
+				Maybe a lot made into preserve at once?
+				- Congratulations when reaching a majority @done(2022-12-14)
 				Maybe 75 percent
+			- Make them less easy to game
+				Right now they are free to add and remove, meaning you could make the whole map preserve until you need it for something else
+				One option: penalize if user switches them too early
+				Another option: charge nominal amount
+				Another option: benefits take time to accrue. Avoids punishment
+				Maybe a combination: benefits accrue after an area has been preserved for a while? Tourism ceases immediately. And you don't get offers to build on that land? Or fewer offers?
 	Staff:
 		- Ranger staffing? @maybe  @milestone(1: Basic Money)
 			- Staffing window