What do you get if you cross a suitcase with rollerblades?
A 14-year-old at an American school recently caused a stir when he claimed that the US government could save over $400 million annually on the cost of printer ink if the default printer font were switched from Times New Roman to Garamond. Major effects can often be achieved by relatively trivial improvements. One of the things I have always hated about the European passport (apart from the word ‘European’, obviously) is the fact that the pages and the cover are all the same size. How much shorter would all immigration queues be were the photograph page just an eighth of an inch narrower than other pages, so the damned thing flipped open at the right place? But these little incremental improvements are not really the stuff from which really interesting innovations arise.