What do you use to clean the black plastic on the doors and everything. It doesn't seem like the material you should be using Amour All on b/c of it's dull like texture. I just have been using a clean cloth that collects dust and stuff but it doesn't seem to be helping with the white scuff marks that can happen if you brush your shoe or something on it. They aren't scratches in the plastic just white marks. What do you use to take these away?