More than 25 percent of all interior designers are self-employed. You're the boss and set your own hours. Jobs for the other 75 percent of working interior designers are predicted to rise by 19 percent during the 2006-2016 decade. You can prepare for the role by enrolling in an associate's or bachelor's degree program at a college or professional trade school. Or shoot for the stars and take classes in interior set design to work in the entertainment industry. Hourly pay for interior designers in 2008 averaged $24.53, just below the $25/hr mark.
(article from Yahoo.com)