I never thought I’d describe a camera and iPhone accessory as “creepy,” but here we are. The Keizus is a quadropod (four-legged tripod) which looks like somebody ripped the skeleton out of one of those cymbal-bashing monkeys beloved of 1970s and 1980s horror flicks. Shudder.

Perch is a new way to use your old iOS device. Got an iPod Touch or unused iPhone/iPad laying around the house with nothing to do? Perch is an app which turns it into an always-on portal, letting you just walk up to it and show things to other Perch users in your network.

The idea is to keep this on a wall at home and treat it as a window on your family.

Thanks to a great article by our own John Brownlee, we now know how easy it is for apps and people to stalk you using location-sharing services like FourSquare and Facebook. And now the more paranoid among you might be wondering, just how do I turn these things off?

Theoretically, you would have already checked the privacy settings when you signed up. But that’s like reading the manual before you switch on a new gadget: Almost nobody ever does it. So here’s a quick guide to locking down FourSquare, and a rather more involved guide to shutting down Facebook.