My primary computer is a laptop, and I really like the trackpad. I only use a mouse when gaming, but I have very limited desk space so the mouse was always in the way. This is just a simple print that I attached to the back of my external monitor to hold my mouse out of the way when I don't need it.

Note: the small tab sticking up on the back wasn't in the original, but I found that the mouse would be falsely triggered without it so my cursor would jump around. Adding the tab to cover the mouse's optical sensor fixed the problem.