Have you ever been away from your computer and realized you need a file on it? Or perhaps access to a program you can’t run on a mobile device?
Remote Access provides a great solution allowing for you to access and control your computer from another computer or mobile device. There are many products and companies offering remote access services like TeamViewer, LogMeIn, GoToMyPC to name a few. Only caveat is you must leave your computer on with an Internet connection to access it.
Personally I recommend TeamViewer for its ease of installation and configuration. Additionally it is free for personal use and provides a method for requesting the remote assistance of others as an added bonus.