What's your go-to outfit?

I often find myself shopping for the perfect outfit to merely run errands.  It's an art really, to look comfortable yet stylish on the streets of Chicago.

This was today's pick for running errands with a friend:

BCBG Asten Beaded Sweatshirt (on sale $95.04 from $198 at http://www1.bloomingdales.com/shop/product/bcbgmaxazria-sweatshirt-asten-beaded?ID=861782&CategoryID=2911#fn=spp%3D3%26ppp%3D96%26sp%3D1%26rid%3D%26spc%3D255%26kws%3Dbcbg).  I love how it has detail and sparkle, but is still soft, comfortable and wearable.

I paired with my favorite Alice + Olivia waxed 5-pocket jeans ($220 at http://www.aliceandolivia.com/waxed-5pkt-skinny-jean.html).  I love the dark wash and they truly have a nice stretch.  Alice + Oliva's website often has great sales, often better than what I've found in department stores.

To finish the look and keep with the metallic theme, I went for my old faithful Tory Burch Reva flats ($225 at department stores and at http://www.toryburch.com).

What's your go-to outfit?