In terms of permanent without need to interact, it's pretty hard. But with minimal effort you can do it. Keep the stuff in text and move it around to different

In terms of permanent without need to interact, it's pretty hard. But with minimal effort you can do it. Keep the stuff in text and move it around to different places periodically, and keep redundant copies. At the moment I favour git. It's easy to set up multiple repos, and if one goes offline you can set up another.