“Web developers have all sorts of browsing tricks that they have
gained from years of experience, to the point where they can’t even
imagine not knowing them — right-clicking to open a new browser
window, for instance, or using the arrow keys to navigate a list. To
Web veterans, these things are so familiar that they seem obvious. The
fact that many people don’t know these tricks — and can get completely
stuck as a result — comes as a shock. This article describes seven Web
site features that typical non-technical users aren’t familiar with,
based on data collected from the author’s own usability studies.” Carolyn Snyder

This is something you will always have to remind yourself, so, worth reading it.