Similar to having a keyboard, a mouse is another important component to have with your desktop. Most mouse is designed with contoured shape to give you all-day comfort in either hand. For gamers, a gaming mouse will ensure you get pixel-perfect movement and extreme precision, plus special buttons with customizable functions.
Of course, you can get by with using the track pad on your laptop while on-the-go, but having a mouse will definitely make your life easier when you want to be more productive. Plus, a wireless mouse is small and compact enough to easily slip into the pocket of your backpack.