I was given an LV Trocadero and the outer and inner zip pocket both have the sticky black stuff.Any ideas on how to remove this?It wouldn't bother me but I like to carry my LV Pouchette in the outer pocket and it is getting this stuff on it.This purse was my mothers and she gave it to me when I went to visit her so it is a very special bag to me and I want to use it as much as possible.Thanks for any ideas.