Grab a vintage or new structured blazer, but make it a pop color. Keeping with a jewel tone for the holidays or a hot red solid, this will easily move into next seasons must have list.
Texture it; add lace or something special, die it or just have it nicely fitted with your local tailor.
For a new one check out J Crew: http://www.jcrew.com/womens_category/blazersandvests.jsp