1. Solve the smallest possible problem (that is still big enough to matter) for the user and know exactly what problem you're trying to solve. Google's first and primary job was very simple: Help people find stuff. They didn't start layering on everything else until much later. Brad calls this the "narrow point of the wedge." Its the easiest, simplest version of what you're trying to do... the smallest bite your users will ever have to chew--small enough to get hooked on very easily.