Image by Aldor via Flickr
Here are some tips to help you save your final project and important data from being lost.
Save your work often and use multiple methods of saving: harddrive, USB drive, email it to yourself and use free network storage such as Mozy.
This method may seem extreme until you lose 4 hours or more of your work and can not retrieve a backup of it from your harddrive. At that point you'll be glad you took 20 seconds out of every hour to backup your work. Remember there is no excuses or extended deadlines allowed for lost data, be smart by being proactive.