While that's extremely admirable of Watson, don’t feel too bad about your own makeup bag. She’s aware of the reality of maintaining an entirely sustainable-cruelty-free-ethical-green-recycled wardrobe and beauty collection: ”Most of my routine keeps to an 80/20 philosophy because it’s very difficult to be a complete purist, especially when working in the film industry. You can end up driving yourself a bit mad and make it more stressful than it should be. Sometimes you just need a mascara to be waterproof and that’s OK.”