How often should I backup my files?

You should backup your files whenever critical data is added to your folders. If you go a month without adding anything too important and have several copies of your work, it might not be important to run a backup. If you have just completed a critical project that took 40 or 50 hours to complete, absolutely yes, you should get those files backed up! We always recommend running manual backups of your data and keeping copies in multiple locations.