Windows 10 October 2018 Update just arrived with a new feature called the Cloud Clipboard. It's meant to be a search box for all your copy and pasting, though one of the useful parts is the ability to sync with your account, so you don't need to copy that text or image and paste them into an email to send to the other computer. You can copy not just one piece of text or image but multiple pieces.
Last year, the prototype of the Cloud Clipboard was released for Insiders and shown off at Microsoft's Build 2017 conference, and it has taken a full year to test by all the Windows Insiders. The feature was supposed to have been in the Windows 10 Fall Creators Update, and released to Android and iOS but it was delayed. Here is a recap:
Starting soon, the same experience is heading over to Android with the SwiftKey keyboard. You can get the beta app now the feature is not ready yet according to a post on Windows Central, although there has be no mention of it coming to iOS yet.
Check out the beta app on the Play Store and be one of the first to receive this update.