For many stars of the games, it's time to temporarily switch attention away from the business of winning to the business of making money.
Luke Macgregor / Reuters
Gymnast Gabrielle Douglas is expected to earn millions in endorsement deals.
The swimming phenom lived up to expectations in London, winning five Olympic medals and setting a new world record. She talks about the events to celebrate her homecoming, starting her senior year of high school, and whether she plans to go pro or go to college.