It is generally a good idea to use some sort of version control for your projects, articles etc. This way you'll have a (versioned) backup of your important stuff. All saved edits will be available. But most importantly the copy/backup is outside your specific control, thus you'll never loose your data and backup just because you forgot your bag on the train.
AU offers two version control systems that are private and hosted at AU:
GIT is very popular, though is probably mainly seen as a cooperational tool rather than classic version control. But can easily be used with both.