Now this is a smart idea. Simple, but so smart. When traveling, naturally you start out with clean laundry, and by the end of it you have lots of dirty laundry. However, the problem is that your dirty clothes gets easily mixed in with your clean stuff creating a frustrating problem. Well, this is easily and impressively solved by Outliers, who’ve developed a double bag – one side for clean, the other side for dirty. So smart. Why did I never think of this?