At age 20, the fraternal twins preside over the tween retail empire Dualstar Entertainment Group. Established in 1993, it sells $1 billion worth of merchandise worldwide a year--everything from videos to hair-care products--primarily through Wal-Mart Stores and the twins' Web site, MaryKateAndAshley.com. Last year, the twins starred in print advertisements for high-end designer Badgley Mischka. Not bad for former child sitcom stars (Full House) who haven't appeared in a hit movie or television show since.
http://www.forbes.com/2007/01/17/ri...s_slide_12.html