The importance of UI controls in design for apps and web
User interface controls are an important and often over looked part of web site design. Considering them is a necessary part of the user experience for a cohesive and modern look. The details of a site and navigation experience are critical to keeping users on site and converting site browsers into clients and customers. Many sites offer UI packages that cost very little and can be tweaked over and over for different clients and user experiences.
Smashing Magazine has  freebies section where you can grab some UI quick and free, but often it is old and will require work to update.
Other sites like FreebiePixels, 365pd, and designmoo are great places to find free designs. Crawling the Behance UI section is a way to get great cutting edge free UI templates.
