Through my daytime work, I use online tools a lot ( e.g. Gliffy, MindMeister ) so one could say I am confident about conducting work online. Sometimes though I feel I need a safety net and this is why I like to use my moonlight time to calm my qualms about the possibility of loosing my work.
To this effect, I have created a python library with several command-line tools ( cross-platform i.e. Windows and Linux, tested on Ubuntu ) to perform, amongst other tasks, backup of my online documents. The library documentation page is available here.