Luna Display is an awesome new technology that lets you extend your laptop display seamlessly in incredible quality to an iPad to use it easily as a second monitor. Luna is actually just a tiny USB-C or Mini Display Port dongle that you pop in, launch the free app, and get to work with. It operates easily with wi-fi, but if that isn’t available, you can always use a USB cable. It even maintains the touch interaction on your iPad while using it as an extension of your laptop screen. At just $65, the only downside I can see is that it only works with Apple products.