The Chromecast isn't limited to just streaming video.
Anything you can put into the Chrome browser can be cast onto a television screen. This includes websites, photos, documents and more. You can even show your computer's desktop and use of programs through it. Though there is some lag when doing this, it's not noticeable if you're showing static images like photos or a PowerPoint presentation.
You can even Cast video games onto the television though, when I tried it, lag persisted. It did do well with Facebook's Words With Friends app, which I attribute to the game's static Scrabble-like nature.
With this kind of use, the Chromecast has the makings to become a big thing for those in the business and education sectors, and it's something Google should advertise as Chromecast continues to grow.
One of the best things about the Chromecast is that it can be plugged into an audio receiver and used as an audio streaming device.
You can stream music using the Chrome browser with sites like Grooveshark and Spotify. Or you can use the Google Play Music app to stream from your various devices.
A huge perk about the Chromecast is its portability. If you're like me, you can take it to your parents' when you house sit for them. Or, you can take it to a friend's for a movie night. Or you can move it from your living room to your bedroom when you're ready to get under the sheets but not yet ready to stop watching that movie you have on.
At the end of the day, the Chromecast is only $35, which is a fraction of the cost when compared to similar set-top boxes like the Apple TV and Roku. It's also easier to use than either of those products.
The number of uses the Chromecast has makes it great for so many things, and the device's potential is pretty limitless right now.