The issue of backups is always an important one, but something we so often ignore, right up until the moment has passed and it's too late. I have backed up important material onto discs in the past (both CD and DVD), and I have also got data backed up onto several external hard drives. You should also make sure that one of your backups is off site - the distance that I once saw was something like 'double the wing span of a crashed aircraft on your house' which is rather dramatic, but not a figure that you'll forget.
Obviously the best place to backup to these days is into the Cloud, and after having a look around I've chosen to go with SquirrelSave which claims to be the UK's #1 service. It's a commercial offering, costing around £60 a year, but it's all automated and works entirely in the background, which is exactly what I wanted. I also have an unlimited amount of space, which is just as well, given that I'm backing up rather a lot. (You'll see what I mean when you look at the screenshot below!)
They highlight their keys points thus:
- Automatic - No need to set a schedule or remember to start.
- Instant - Save a file and it is backed-up straight away.
- Unlimited - Unlimited backup for your personal files.
- Historical - Copies kept so you can go "back in time" forever.
- Simple - Simple to install and easy-to-use.
- Secure - Fully encrypted and 100% safe.
- UK based - No data sent overseas.
It's currently working away in the background, and I've not really noticed any degradation in speeds. I'll let you know how it goes. Meantime, here's a screenshot of the interface in action, which gives you a nice idea of what you can do with it.

(And yes, it really does mean 28 days!)