Being a mom is hard work, whether you stay at home or have a career along with it. Sometimes I wonder if I'm just out of my mind to work from home. But for the most part, I'm the happiest I've ever been.Graphic design is one of the most flexible careers out there and when I started my business 4 years ago, I didn't quite know just how flexible I would have to be once I started having kids. Enter my now 23 month old son. In order to work at home while taking care of him, I had to learn . . .