Doing freelance work as a designer can be very stressful. The best way to earn revenue is to pick a specific field to go into. A User Interface (UI) designer works on the look and feel of website and applications. In other words they are in charge of customer analysis, branding development, graphic development, design research and user guidelines. All these play a major role when designing software for computers, home appliances, mobile devices, and other electronic devices. Like all freelancers, UI designers must work hard to obtain and maintain their clients. Here are some tips on how to be a great UI designer.