*bump* just in case anyone needed more information! I always kept my kids swaddled or in a sling of some kind when they were newborns to about 5 months old. I read in a book written by several Native American tribal leaders about the importance of the Navajo cradleboard and how it works. They believed that young babies learned self-calming, emotion-regulating behaviors by being confined in the cradleboard. Two pieces of dried corn cob would be tied on the sides. As the mother walked around, the corn cobs would make a shushing noise, which is comforting to babies. A friend of mine who is a "baby wearing expert" taught me how to use a wrap and literally tie my daughter to my chest. It was amazing how calm she was, and even at 12 months still is. I could tie her up right next to my chest, she could nurse if she wanted, or just stay asleep-and I had both hands free! For teething, frequent nursing and cold foods like yogurt always help my little girl, along with the occasional application of Anbesol.
I also highly suggest Dr. Harvey Karp's "Happiest Baby on the Block".