Christmas is not so close yet, but I have made a Christmas UI Kit that is completely free for download. You just need to pay with a tweet or facebook post. The UI kit is...
Tagged: Free UI Kit
Sally Blocks is a humongous set of various elements and components which might become really handy when you are building responsive web pages.
Polaris UI Free User Interface Kit is a set of beautiful free UI components. The pack includes Edit Boxes, Check Boxes, Radio Buttons, Page Navigation, Menu, Buttons, etc.