Just put all your project files in Dropbox!

Seriously, it's so easy. Every time you hit save, you'd have to try to lose the file. Pair this with git going to github or bitbucket and it would take several well placed nuclear explosions to destroy your work.

If my laptop instantaneously combusted at any point in time I would, at maximum, lose approximately 6 seconds of work (or the last time I hit "save"), and could set up a new laptop and be productive on it in about an hour (to install Dropbox and give it time to sync, Sublime, iTerm, Chrome, and custom keyboard hacks). Pet peeves, man.