Keeping your personal data and surfing habits private is an important concern. This is especially true if you need to use a computer at a library, Internet cafe, or hotel business center. One way to do that is to surf the Web using OperaTor, a utility that includes (and simultaneously launches) the Opera browser, the Privoxy Web proxy (with advanced filters for guarding your privacy), and The Onion Router (a system for anonymous Internet communication). OperaTor (and its components) need no installer and store no information in the registry, which means you can run it from a USB flash drive. This makes it ideal for surfing at public computers.