The same Micah Lee has a guide to privacy in PDF:
There are also many informations on the Tails site. https://tails.boum.org/
The question I have is, Tails team tells you that you can add an encrypted volume to your tails USB key to store your documents, hyperlinks, encryption keys and more, but that it isn't recommended.
In this case, what's the alternative ? Can one assume there is a safer cloud storage somewhere ?