6. Anchor A Layered Look
When you're mixing and matching heavy layers, adding a beanie sometimes works as an anchor point. It brings your eyes upwards and balances out a busy look.

Take this outfit for example: A smock dress over baggy jeans and a blanket scarf might look a little out there. But if you add a beanie on top, the warm outfit looks a little more intentional. 

Found on Pinterest here, from Good Night, Day.