One thing that everyone does on their Mac is write. Whether you’re working on an essay, writing code, or composing an Ask Different answer, you spend time working with text.
I’m one of those people who think that keyboard shortcuts are awesome in general: they allow you to do things much more quickly than you could using the mouse. While entering text, though, keyboard shortcuts are especially important. Since your hands are going to be spending most of the time on the keyboard anyway, switching to the mouse costs even more than usual.
Luckily, OS X has tons of keyboard shortcuts built in for working with text. This screencast will familiarize you with all of these shortcuts, as well as walk you through the process of creating some shortcuts that should exist but don’t. It will also introduce the idea of clipboard managers and how to take advantage of them to be more efficient.