diff --git a/todo.txt b/todo.txt
index 7aea420..7be8be8 100644
--- a/todo.txt
+++ b/todo.txt
@@ -7,3 +7,4 @@
 7. ----IN PROGRESS---- Figure out how to input game mode and (if applicable) IP address and port through the GUI, instead of the command-line.
 8. Clean up / refactor the raygui code in main.cpp, that asks user for game mode. Instead of just having a giant blob of code in main.cpp, maybe split it into a function, or move it to another file. It should be easy to split it into a different function, since none of the functions take any specific parameters. The text box function, for example, only takes in the rectangle coordinates, and the text to display. I can move the code to a function, and then pass in any parameters that I need to pass in (I don't think I need to pass many parameters, though).
 9. Allow the user to quit before the game actually starts i.e. while they are inputting the game mode.
+10. Move 'timer.h' implementation functions to a 'timer.c' file (or 'timer.cpp', if you want to use OOP).