I was really nervous the first time my son JD and I traveled together. As a single mom traveling solo with her child, I think it's totally fair--expected, even. Did I pack enough diapers? (There was no one to make a middle-of-the-night diaper run.) Would I manage to get JD, myself, our stroller and carry-ons through security with only one set of hands? How would I use the bathroom on the plane with no one to watch my child? Here, some tips I picked up on our cross-country and international adventures, plus advice from the experts.