Hilary Duff's 10 Style Secrets!

The People StyleWatch cover girl dishes exclusively about her fashion and beauty must-haves

MY FOOLPROOF OUTFIT IS ...

Like many stylish stars, Hilary knows exactly what works for her busy lifestyle. "Leggings, high-heel ankle booties and some kind of interesting, but simple, top. And always a scarf. I tend to have a few layers going on, so either with a sweater or with a leather jacket."