Or you can even just go super old-school, and stick a bit of tape or blue-tac on your monitor as an aiming device. Now, you can add a crosshair overlay to games with a third party app, or you can get some monitors with it as a built-in setting.
On the cheating scale, it’s definitely one of the most benign cheats, (I’d argue it doesn’t even provide much of an advantage), but it still constitutes using an outside method to gain an upper hand over other players. Personally, I’d put this one in the cheating column.
