I recently wrote a post, How to Prepare Your Toddler For a New Baby. In that post, I gave my best advice on how to prepare your only child for a new brother or sister. It is easy to forget how tough those first few weeks are after bringing your new baby home. You’ve done this before. But, at the same time, you haven’t done this before. So what’s the secret to managing motherhood with more than one child? Letting go of all your expectations and taking it one day at a time. I might have a few other useful…