Apparently the cold weather will affect you accurately locating your cursor in FPS games. If you want an easy solution, the USB warming mouse pad may be a nice solution.
This is a practical, winter-friendly mousepad inspired by a set of Japanese futon. As we can see from the images, the mouse pad consists of three parts including a main mousepad measuring 255 x 275 x 38mm, a comforter, and a little pillow. The comforter contains a removable USB heater that allows you to connect it to your computer in order to keep your hand warm during using your computer, while the little pillow acts as a cushion to offer you a suitable angle for comfortable griping experience. Apart from that, the opening ends don’t affect you using your mouse.
The USB warming mouse pad is priced at $36.6 USD. If you’re interested, jump to GeekStuff4U for more details.