Even a $3/month hosting account with GoDaddy has 10gb of web space. If it's code you want to store, you might as well store it where you can test it too and get a website out of it. That's a hell of a lot better than a 1gb dropbox or paying more for the same amount of storage through an online storage company. If you're afraid your shit will get lost in a fire, keep an external with all your important stuff and put it in your car. Have one with the same data in your house so you can use it. Chances are your house isn't going to burn down the same day your car is stolen. You people worry too much.
EDIT: Oh and by the way, read the disclaimers and TOS agreements for those online storage companies. They can lose your data and just say "too bad so sad" and you're just shit out of luck. I want control of my own data, thank you very much. I would NEVER use an online storage company as my only backup.