In the 1980s, there was a revolution in software. The Apple Macintosh came out (building on the invention of the WIMP interface at PARC), Don Norman wrote The Design of Everyday Things, and the first CHI conference was held. Now everyone knows how important user interface design is, and there’s no excuse for messing it up. You can find several collections of UI design heuristics (such as Nielsen’s) online, and many companies publish standards for how to use UI widgets consistently (here...