Honey and Lilly, especially Honey, bark at strange noises and visitors. My Federal Express delivery lady has figured them out and brings them milkbones everytime she comes. She says she is so disappointed if they don't meet her at the door!
As for the barking, I am fortunate that I am able to keep my dogs inside a lot so that they don't bother my neighbors. I have had a couple of complaints which made me feel terrible. I never let them disturb anyone at night, but sometimes have to leave them out during the day.
I think you just have to be sensitive and careful where your neighbors are concerned and let them know you're doing everything you can to keep your dog from bothering them. Most people are very understanding.
Good luck.