I bought my first Gucci a couple of summers ago at a Saks sale, and I get all kinds of complements on my tote when I carry it. But I never got a dust bag or anything, and it came with one small dirty spot. I've tried just using water but it doesn't come off...it does look like dirt, nothing strange. Do I have to take it to a professional, or can I use something like Nature's Miracle without hurting it? I have a Magic Eraser around someplace, but since the bag is not pure white I'm a little afraid to use it. What should I do? It's really bugging me...I want to keep it beautiful!