unclutter is a tool to hide the mouse cursor when not used. It might be useful when you use your keyboard, especially in tilig window managers.

To use it, install unclutter package, and launch it at the startup of you session. As example, you can add this line to your ~/.xinitrc

Problem with mouse auto-move

Unclutter could cause unusual mouse behaviour in some games (such as openarena or Battle for Wesnoth). The mouse cursor might be reset to some positions in the screen because of this problem. To solve this problem, add "SDL_VIDEO_X11_DGAMOUSE=0" to your environment variables. Just put in ~/.profile