Until recently limited to scandalous MySpace pics and amateur porn, now, taking webcam pictures of your ass has become as mainstream as the clothing company itself. The TV spot advertising the Booty Reader is playing in high-volume markets and features a woman fortune teller beckoning you to “Let me read your booty…” Once you get to the site, cue up your webcam, line up your behind with the site’s specs and Old Navy reveals your denim destiny.

If anyone knows what it’s like to have a sexy booty, it’s Mad Men star Christina Hendricks, who will grace the September cover of British GQ with her fire-red hair and size-12 voluptuous body. The interview covers her pin-up persona, how she’s treated in Hollywood despite not being stick thin, and even talks about how she was able to shape her character Joan Holloway’s personality by reading Helen Gurley Brown’s Sex And The Single Girl. “It was very much about being aware of oneself,” Hendricks says. “Each move being very controlled and manipulative, but not in a negative way.”

If you’re using herbal diet pills to try and lose that booty—think again. Yesterday, Reuters reported that dietary supplements are often contaminated, and can cause cancer, heart problems, and kidney damage. This includes everything from natural vitamins, weight-loss aids and those that are advertised to boost your libido. The report states that only about one-third of the supplements produced are held to any specific safety or effectiveness standards, and that the factories in which they’re produced are rarely inspected by the FDA.