Reese Witherspoon had a busy morning of working out and running errands around LA today. She made a stop at the Brentwood Country Mart, picking up a bag of goodies from James Perse and then heading back to her SUV with the new purchases in a reusable American Eagle bag. It would appear Reese is getting a jump start on her Fall wardrobe, since yesterday she was spotted leaving Chloé's Melrose Avenue outpost. It's almost back-to-school time for her kids, Ava and Deacon Phillippe, following their Summer of fun. Ava and Deacon spent the July 4 holiday playing on the beach with Reese and their stepfather, Jim, then took an out-of-town adventure with dad, Ryan Phillippe. Busy Reese has her own new material to study. Reese just signed on to star in Wish List, and there's a possibility she'll team up with pal Matthew McConaughey in Mud.