A few weeks ago, a client told me about a program called Mozy. It was so inexpensive ($5/month) that I signed up right away, and I've discovered that this program is really a terrific value. It was recently featured in PC Magazine, I'm told, but I haven't subscribed to that particular publication for a number of years now (too consumer-oriented; I've gotten so I much prefer TechRepublic).
I did a popular post on Data Loss and Backup Solutions a few months ago, and I think that this particular product is an excellent solution to the backup issues I outlined before. This is very similar to the more-expensive tools from Connected TLM that I have used in the past, but this tool is much simpler and more cost-effective. They even have a version that is completely free for up to 2GB of data, which should be more than enough if all you're looking to back up is your writing materials. I have a a lot more data than that to back up (58GB for now), so I'm doing the paid account. If you don't already have a backup solution (or aren't happy with the one you do have), check this one out and see what you think.