If people are concerned with stealing my word docs of drafted statements of purpose, unfinished poems, excel documents regarding MFA programs, and etc, then let them. I would probably get more publicity from pursuing copyright infringement actions if they made unauthorized publications of my poetry than otherwise. I mean please. Go to. Hack me for my writing. Writing, and the internet, are literally the only things I use my personal computer for. Do I consider it important data? Yes. Would anyone else on the face of the planet? Doubtful.
I can't dropbox at work. :-/ And since I do the email back-and-forth in large part to have access to things at work, it kind of negates the purpose. I mean, I could also back up on dropbox. It just wouldn't mitigate the self-emailing in any significant way.