Honeymoon Usability II: Do Not Disturb Light

Continuing with usability examples found during my honeymoon at Secrets Capri, I think it's only fair that point out a good design next, and this is definitely one! All rooms at the hotel were equipped with Do-Not-Disturb lights activated from inside the room and displaying outside the room next to the door, rather than the hanging doorknob signs we're all familiar with. Jess and I both found the light system much more convenient: it can be turned on or off in much less time than hanging and removing a sign, there's no worry about a sign falling off the door (they were never designed for horizontal-handle doors, only round knobs), and we don't even have to open the door to activate it. A very, very usable design!