Courteney Cox wore her Chanel bag while out shopping at Brentwood Country Mart yesterday before getting together with Laura Dern to celebrate Cinco de Mayo in the evening. Her friend and frequent Mexico vacation partner Jennifer Aniston spent the holiday in NYC, where she skipped margaritas in favor of French food! Courteney engaged in some afternoon retail therapy the day after reuniting with old pal Brad Pitt. Brad and Courteney joined a large group of friends to celebrate talent manager Cynthia Pett-Dante's birthday at Beso in LA on Wednesday night. Courteney has been hanging near home since wrapping up her press tour for Scream 4 and during her hiatus from Cougar Town. She teamed up with David Arquette to celebrate Easter last month with their loved ones, though the estranged couple don't seem to be reconciling romantically any time soon.