If you use Google services such as Google Reader, Google Drive, YouTube, Contacts, Google+ Circles, Latitude, Picasa Web Albums and a few more, you can download all of your stuff to your computer.
You can organize your apps in so called folders on your Nexus 4. For instance you can put all your games into a games folder and this is how you do it.
Most of the annotations popping up while you are watching YouTube videos are really annoying, but there is a really simple on-click way to get rid of them.
If you are using removable disk or USB key then you should look at this lesson. I will show you how you can safely remove your device from computer without the fear of losing data.
If you are getting a vast number of email notifications sent by your Twitter account and they started to annoy you, this is how you disable and manage them.