Nothing says Fall/Winter like LEATHER! The thing that I think is so unusual this season, is I'm seeing more and more pleather (fake leather). Pleather is much more affordable, and very easy to alter or re-work.
The 'rocker chic' look is a fun one to incorporate into your holiday looks. Think about pairing a motorcycle leather jacket with a flirty ruffled or lace skirt.
For the office, take the same motorcycle jacket and pair it with a tweed skirt.