It was bound to happen one day: a misstep by Michelle Obama. She fell for a pair of $540 designer sneakers and trotted them out last week at a food bank, no less. Bad move, says the Guardian. Mrs. I'm-all-about-J. Crew should have ditched the colorful suede Lanvin sneaks and opted for Converse, writes Emma Sibbles. "All the celebrities know they're the hipsters' shortcut to looking cool," she points out. And most importantly for the image-conscious Obamas, they're inexpensive.