I'm in my 30s and just picked up a beautiful gray houndstooth sport coat. I'm not sure how to wear it, and I fear that houndstooth will instantly make me look much older than I am. I'm not looking to dress like a 23-year-old kid, but I'd like to be able to wear this jacket in a way that is young and stylish. Can I wear it with blue jeans? How can I "dress it down" so that I maintain some semblance of being hip? Thanks for any advice you may have!