If in the mall I would usually find a dressing room. Motherhood stores advertise their dressing rooms for nursing moms and I've heard (but no BTDT experience) that PBK has a back room for changing and nursing (not sure if that's all locales or just mine). I nursed a lot in the car. I didn't mind it. I was comfy in the back seat and it was private. So for grocery stores, and places like Target, I'd nurse in the car before heading into the store.
Mom to two amazing DDs ('07 & '09) and a fur baby.
Gluten free since Nov '11 after non-celiac gluten sensitive diagnosis. Have had great improvement or total elimination of: migraines, bloating/distention, heartburn, cystic acne, canker sores, bleeding gums, eczema on elbows, dry skin and scalp, muscle cramps, PMS, hair loss, heart palpitations, fatigue. I'm amazed.