The Safeplug from Pogoplug is a small, cheap (US$49) box you plug into your home router to create a Tor-driven instant proxy server, allowing computers on your network to act as an internet access go-between. The Safeplug also has an ad-blocker, which is disabled by default.

Safeplug is not a panacea for anonymity:

However, Mehmet Güneş, an assistant professor at the University of Nevada, Reno, who studies anonymity tools, says that users of the Safeplug will only remain truly obscure if they adjust their online behavior in other ways. “Tor provides unlinkability from source to destination, and people confuse that with anonymity,” he says. While using Tor people can easily leak identifying information via the Flash plug-in, other media add-ons, or through information they type or send, says Güneş.

And since the Safeplug uses Tor, that’ll slow down your access, too. Still, this seems like a real value to people determined to do everything they can to stay off the grid.