This document discusses defaults and how they can improve workflow. It explains that defaults are decisions made before a decision is necessary, like pre-ordering an iPhone. There are three levels of rules for an individual: general design principles, conventions for teams, and personal defaults. The document advocates carefully considering choices, sticking to decisions, and only changing when truly necessary, citing Apple's long-lasting 30-pin connector as an example. It concludes by recommending considering choices carefully, sticking to decisions, and only changing when needed.