Maria Shriver decided to celebrate her independence from Arnold Schwarzenegger this weekend.

Shriver's move comes after the highly-publicized revelation Schwarzenegger fathered a son with their former housekeeper.

Shriver is seeking joint custody of the 17-year-old and 13-year-old sons she has with Schwarzenegger. The couple, which announced in May they had separated, also has two older kids.

The couple does not have a prenuptial agreement, although Shriver stands to gain as much as half of her soon-to-be ex-husband's fortune because California law states income brought in during a marriage should be treated as an equal asset.