I saw in an earlier thread that someone suggested Button-ons to organize their BVs. I just wanted to share that I use these organizers I bought from Muji in Japan but I believe they are available online or anywhere where there's a Muji store (UK, France, US). They are great and come in two sizes and different colors. They have a zippered compartment outside and lots of dividers inside and the lining is light-colored so it's easy to find stuff in bags with dark interiors. I feel it also helps protect the lining of the bag.
Here a link for more detailed pictures.
http://www.muji.net/store/cmdty/detail/4945247024876
Here a link for more detailed pictures.
http://www.muji.net/store/cmdty/detail/4945247024876