I was at the University of Washington Medical Center with a friend of mine last week and walked by a water fountain that could accommodate a bottle up to one liter. It has a digital display on the side that tells you how many bottles have been filled at this fountain.
On closer inspection it had a sensor in it so you don’t have to hold or press anything. You just put your bottle under the spout on it starts filling.
If you have ever tried to fill a bottle of any sort from a water fountain you can imagine how useful this is. I have only seen this one, but I have been told that several of the Hospitals have started replacing their fountains with these.
Cool, literally, as the water is super cold.