Because they practically grew up on the TV series "Full House," it's easy to think of Mary-Kate and Ashley Olsen as members of the family -- who really need a good meal. Titans of industry with clothing and cosmetic lines, the girls have built an impressive retail empire. In 2007, they made the Forbes list of the "Top 20 Richest Women in Entertainment" with a net worth of around $100 million. Although Ashley and Mary-Kate look alike, they aren't all that similar. Ashley is the quiet one, and Mary-Kate is the adventurous one.