Mum-of-four Brittany Balinski set herself the challenge of wearing the same wool dress for 100 days without washing it, explaining why she views the durable material as self-cleaning, despite what online critics may sayMum-of-four Brittany Balinski set herself the challenge of wearing the same wool dress for 100 days without washing it, explaining why she views the durable material as self-cleaning, despite what online critics may say