An anonymous reader writes "If you're a Windows or Linux user, or simply an Apple user that can't justify the $500 price tag on those beautiful 3TB Time Capsules, why not build your own? With a wireless router, an external USB hard drive, and a little bit of setting up, you can make your own wireless, network-attached backup device for around $200."
If it happens once, it's a bug. If it happens twice, it's a feature.
If it happens more than twice, it's a design philosophy.