spacedesk is a free program that makes it really easy to use your tablet or smartphone as a second display for your Windows PC. It offers two modes to do this: Extend and Mirror.

But you can use your tablet to improve your productivity, too. Since a tablet is essentially a portable touchscreen, why not repurpose it during work hours as a secondary display?

If you're looking for an Android tablet to use this guide on, our old collection of the best Android tablets from almost a year ago still holds up pretty well. Ten inch tablets are typically ...