Being a mother changes everything. Before you become a mother, people try to explain what that means – no sleep, no privacy (bathrooms seem to have an open door policy in my house), and your fashion sense goes out the window! The thing is, you can’t really know what it means until you are face to face with this other human being who depends on you for EVERYTHING. Once you get over the mind-numbing fear of all that responsibility, you move on to the practical things that you can do. Car seats– check. Bike helmets – check. A sweater for them whenever you get cold – check. A backpack full of...