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The Novotel North Cambridge hotel in the UK had lights that come on when you approach in all guest corridors, as well as room lights that require a room-key-siz

The Novotel North Cambridge hotel in the UK had lights that come on when you approach in all guest corridors, as well as room lights that require a room-key-size card to be inserted into the main light switch (so they all switch off if you leave the room, along with HVAC going into away mode). I've also seen a number of grocery stores adopt display lighting that turns on only when presence is detected.

bombcar 3y ago
The grocery store thing is getting more common in the US - a friend said it makes her want to dance like a Disney princess :)
midasuni 3y ago
The credit card sized thing is common in many hotels. Fortunately an expired train ticket is the same size, and usually do the trick.