Not a fan of your Mac's default text cursor blink rate? MacIssues points out that it's super easy to change with a couple of Terminal commands. If you're running OS X 10.8 or earlier, you need just ...
The terminal is approachable and can be fun—practice shortcuts to make it your go-to over a GUI. Learn history, !!, Ctrl+R, tab completion, pwd, and cursor shortcuts to edit and reuse commands fast.