WC SYSTEM. Knowing your organization regarding toiletries can save much time in determining systems in new places. Because so much time is spent in this room, having transferable systems can help you settle in and start living smoothly.
Yes this is a bathroom and, also yes, this would only work in a space where all of the undersink plumbing is hidden. But I love the convenience factor and like the idea of using similarly industrial cubbies all over the kitchen.