I have a 2 yr old and I'm still stuck carrying the diaper bag all weekend. DH bought me a Dooney & Burke diaper bag, that I love, as he knew it would be my new "handbag" for the most part. :However, I just hate not being able to carry my designer bags all weekend long or when the baby is with me. He's a little older now (2yr) and I'm really wondering when can I ditch the diaper bag all together. I've seen some kids wear their own back packs but at what age do you do that?