Backing UpIf you don't trust your backup system, you're bound to keep the paper copy as a reinforcement, which negates the purpose of scanning everything in the first place. Mac machines now have a program called Time Machine that will automatically back up your data to an external hard drive.If you are using only an external hard drive to back up, you might think about having a backup external hard drive stored away from your computer. I would suggest a safe or something similar. If something bad happens to your computer, it could also happen to your external hard drive, so it's best to have a backup of your backup.I strongly suggest also backing your data up to the cloud. Not only will your data be safe if something happens to your computer, but you can access your documents from anywhere.My personal favorite cloud applications are DropBox, Evernote and iCloud — all free.