The breastfeeding singlets from K-Mart's BB / maternity line are great!!! $12-15 dollars in black or white. Cover the tummy and lift up to expose the feeding breast only (and I have a large bust too). NICU were impressed with them too because they can be used for kangaroo cuddles without over exposing the mother. Not to mention the extra warmth at this time of year!! I wear them to bed at night too.