Can’t say I’ve used a ClickFree external backup solution myself, but Dwight Silverman gave it a go over the weekend. It appears to be as easy as possible: simply connect the external USB drive and it backs up the most common data files. No muss, no fuss as there’s clearly software included on the drive to handle the process. You can certainly specify file types if you find that some of your data files aren’t considered “common” to the ClickFree and you can use it to back up multiple PCs.Obviously, you’ll have to remember to actually plug the device in as that’s the only time a backup actually occurs. And yes, there are plenty of other backup options out there, both physical as well as through web services. You can also create a similar experience with any external drive and appropriate software. Still, I got the impression from Dwight’s experience that ClickFree offers a simple and portable solution that’s worth a look, especially for mainstream computer users. The 120 GB model he reviewed goes for around $150 and requires no external power supply, making it good for those on the run.