Boyfriend jeans, plaid, cardigan, and sandals. My only qualm is: if it's cold enough to wear a flannel shirt and cardigan you probably shouldn't be wearing sandals. I'd wear this with boots, tennis shoes or even flats.
You can't go wrong with a plaid blanket scarf. We all know that! I think this outfit also shows us that we all need to add a cute winter hat to our cold season wardrobes. Also, distressed jeans are back in!