I love clever, innovative things. On a recent trip to London I got to see this dyson hand dryer in the gents at Waterloo station.
I wanted to take a photo, but that was just a little bit odd. However this hand dryer you place your hands in fingers pointing down. Drawing your hands out slowly a blast of air pushes the water out and down your fingers. Unlike other hand dryers which take ages and move the water around your hands as you wring them.
It may seem something small and not important, but it seemed very clever and an "obvious" solution