Thanks Julio of 3DSpotlight for this.
One of the most overlooked components of a PC is also the most common. That device is the Mouse. Getting tired of your current mouse & it's rather lack lustre handling? Well, don't replace it just yet. You can do a surprising amount of things with your mouse to make it feel like it's new once again. Be it improved scrolling, better responsiveness to input or just more customized to your requirements.
View: Mouse tweak guide