Jennifer Garner and her younger daughter Seraphina shared a laugh during a one-on-one outing in LA yesterday. It was just the latest Summer activity for Jennifer and her girls, and the twosome was joined by older sister Violet for a trip to the Natural History Museum on Tuesday. Ben Affleck left Jennifer, Violet, and Seraphina in California earlier this week when he set off to start work on his new directorial and starring vehicle Argo, for which he has been sporting a much talked-about new longer hairdo. Production on that movie will take Ben overseas and Jennifer has her own international travel lined up for later this season. Jennifer's ensemble comedy Butter will premiere at the Toronto Film Festival in September.