My mom just got a BH about 3 weeks ago so the vachetta is still really really light. She was at the Bobbi Brown counter and leaned over with her bag and either lipstick or creme blush a little spot in pink got on one of the straps. How do you clean it or do you? I have apple care stuff, baby wipes and a magic clean eraser ready or do nothing? Thanks anyone for any help you can tell us.