Do you use more than one computer?
Install humyo.com on them all, then when you make a change to a file on one, it will be synchronised to them all - instantly. You'll see the same files everywhere you need them and never lose a change to a document again.
You can choose which folders to synchronise and files are never deleted from your computer permanently so if you make a mistake there's no need to worry.
What's more, with humyo installed your data is securely backed up as you work. Your files are safely stored in our former bullion vault within moments of you saving them so your data is always protected.