I don't know if anyone shops at Lush ( http://www.lushusa.com/shop), but they have the best Handmade Cosmetics. I use all of their soap, deodorant, and shampoo bars (which you store in a lush tin, so there is no packaging). I love all of their products and they are all about low waste. Check out their website if you are looking for a great bath product.
I'm obsessed with LUSH! Their philosophy goes great with zero waste. They happily accept refilling your own containers. Recently I bought solid shampoo that I love and a face-wash they put in the tin I brought in. The T'eo deodorant is life changing, works so well and zero packaging! Super friendly staff too.