As a mama of two, I've toted my fair share of diaper bags. Some are rather heavy before I even load my essentials so I loved that the Heidi Mommy Bag ($109) lightens my load. Made by Adi Samuel, a young Israeli designer, the simple and chic bag offers functional elements like snaps to attach it to your stroller and a removable inside pouch so you don't have to rummage around. The Coolil bag can be worn as a backpack or shoulder bag and is ideal if you want a sack that can take you and your babe from birth to preschool.