Heather Mills is reportedly representing herself during some court hearings in her divorce battle with estranged husband Sir Paul McCartney, in a bid to keep her legal costs down. The former model dispensed with the services of her barristers when she yesterday (06DEC06) made an application to bar MCCartney from her home and gain access to his, according to London newspaper the Evening Standard. A legal source tells the publication, "She has to be careful about the size of her legal bills and by representing herself she is able to cut down on the costs." The newspaper reports Mills is still using legal firm Mischon de Reya to handle the battle over money and custody of her daughter BEATRICE, three.