Admit it: You sneak a peek at the latest rags in the checkout lane. * That's OK. There's little else to do, unless you want to memorize the ingredients of Orbit gum. * Although the flashy tabs often dispense frustratingly inaccurate information -- how many times have they pegged Jennifer Aniston as pregnant? -- they're sometimes dead-on correct. * Hello? They all knew that Madge and Guy Ritchie ...