I've mentioned my fondness for Pushbullet in the past. You can easily send links to websites from one device to another, as well as receive notifications from your phone on your desktop. You can even send SMS messages from your desktop.
One of the features I've been using more and more lately is the ability to copy and paste text from one device to another. For example, suppose I'm working on something on my tablet and need to insert a block of text that is on my computer. With Pushbullet's universal copy and paste, I can highlight and copy the text on my desktop. Then, after waiting a second or two, on my tablet, I simply choose paste where I want the text I copied on my desktop to go.
To enable this, on all of your devices you want to be able to do this, simply open up Pushbullet's options and enable Universal Copy and Paste.