I added a portable monitor next to my main display and this inexpensive upgrade is a game changer

Portable monitors make working on the go easier but they’re also a more affordable stand-in for a traditional display when desk space is limited.

How to use your iPad as a second monitor for your Windows computer

To use an iPad as a second screen on a Windows 10 computer, you'll need to use a third-party app like SplashTop.

How to screen mirror your Android to a TV or computer, even without a Chromecast

To mirror your Android's screen, you'll need a Chromecast, a compatible TV, or a third-party app like Tenorshare Phone Mirror ...