Just because you're stashing a pair of over-the-top heels at your cubicle doesn't mean you can't look polished en route. You're not Melanie Griffith in Working Girl, so there's no reason for white Reeboks and tube socks on the subway. Instead, opt for non-athletic shoes that slip on and off easily under your desk. Ballet flats, like Madewell's leopard-print version or Repetto's navy patent leather pair, add a feminine touch to cropped trousers; Jil Sander's masculine metallic loafers and Phillip Lim's pointy black slides are a smart counterpoint to skirts. Once the weather starts cooling down, sub in flat, zippered boots or a low chunky heel to keep feet warm on morning travels. For these, and other sensible-yet-stylish options this fall, click ahead.