One of our neighbours thoughtfully cuts the Sudoku from her paper every morning and leaves it at the door of a second neighbour. For the longest time we'd seen the little clipping lying on the second neighbour's stoop every morning as we left for work. But magically one recent day, the Sudoku was pinned to the door jamb. One of the two had realized that a magnet combined with a metal door frame was a far more convenient (and elegant, we would argue) solution to the daily hand-off. If anyone ever wanted a definition of what design is, this is it: simple, functional, and pleasing solutions to life's "problems", however big or small.