The Pareto Principle stipulates that a high percentage of users will perform a low percentage of actions. In other words, most users visit a small percentage of pages or perform a small percentage of tasks. By identifying what small percentage of actions most users are performing (by using analytics, research, interviews, etc.), a higher emphasis can be put on those tasks and actions to make the site easier to use. Knowledge of the Pareto Principle can also help to illustrate content and features that users are not accessed or used (aka: content and features that could be removed to create a more streamlined and usable site). Source: 10 Laws to Design By, by 3.7 Designs

I’m currently delving into the world of breadcrumb design and purpose, which led me to this gem of an insight by Jakob Nielsen:

In user interface design, it’s often dangerous to take metaphors too far, and breadcrumbs are again the perfect example. Offering users a Hansel-and-Gretel-style history trail is basically useless, because it simply duplicates functionality offered by the Back button, which is the Web’s second-most-used feature.