Jason Snell at Macworld has some totally awesome tips for making you into an iPhone ninja. My favorite batch of tips apply to any camera phone: Use the camera to take pictures of, well, anything you don't want to forget.

• When your parking space is a long way from your destination, take a picture of where you parked. If you're parked in a lot with location markers, take a picture of the nearest one of those.

• When you take the kids for an outing, take a picture of the kids before you start. That way, if you and the kids become separated, you'll have a current picture, with the clothes and haircut they were wearing that day, to show the security guards.

• This one hits home to me, personally: I often travel on business and valet-park my car. Often, the attendant asks me what kind of car I'm driving. My usual response: "Uh, I dunno. It's a rental." Snell advises, when you rent a car, to take a picture of it, including the license plate.

Snell also advises on techniques for making personal Web pages for information you want to remember, making a fake podcast, a workaround for the iPhone's inability to sync notes to the desktop, and more, at Macworld.