Using the sling has helped with breastfeeding in public. It took me awhile to learn how to nurse Austin laying down, but when we got the hang of it we nursed everywhere! And now that Austin is sitting up I put him on my hip and he can nurse while I am walking. He has even gotten to the point where he lifts my shirt when he is ready for his "num-nums."
Also, the sling has helped keep my hands free while I help take care of my older child. It never fails that you sit down with the baby and your older child comes up and says "Mommy can I have some juice?"
Slings
Baby Wearing on the Job
Over The Sholder Baby Holder
Little Koala