Here's Kristin Cavallari carrying her baby Camden and a Chanel Grand Shopping Tote (or the Chanel GST, for Chanel fans in the know) while heading to lunch in LA. This classic Chanel bag has been around forever - I just assume everyone who was ever on The Hills has one in their collection, as they were a fairly Chanel-obsessed bunch. They probably would've never guessed back in 2006 that they'd one day be stuffing their Chanel bags with diapers and little Tupperware containers of Cheerios.
On a related note, I wonder if celeb moms will ever lose the leather jackets and embrace the baby sling. Sure, it obscures a good half of your outfit, but then your baby isn't made anxious by paparazzi advances and other stimuli that come along with being attached to a someone of a certain amount of noteriety. (That's pretty much everything, right?) I have yet to see a single celeb mama go whole hog and just wear their baby. It's possible that Chanel or Louis Vuitton will have to make a line of luxury baby slings before that ever happens.