Work even more efficiently with your Apple MacBook by adding some useful accessories. The Magic Mouse, the innovative mouse by Apple, is always useful, allowing you to maneuver across the screen even faster and better. If you want to get started with Word and Excel, you need an Office suite. An antivirus program to protect your files is a useful addition too.. But you don't just want to protect your files. You want to keep your MacBook looking good with a trendy sleeve or bag.