Another good thing to do is to start baby on the weak breast when she nurses in the middle of the night. They are so sleepy that they don't care and it helps keep that side stimulated. I, too, start my dd on my weak side when she's tired or maybe not as hungry, and on the strong side when she's very hungry and finish her off on the weak side. I am not lopsided at all except when my milk lets down and then it noticeable, but goes away once she nurses.