More than the individual tab completions, I've found that when working on a feature across many files, when I open the next file half the time I can just press

More than the individual tab completions, I've found that when working on a feature across many files, when I open the next file half the time I can just press tab a few times (and no other keys) to make all the edits I wanted in that file in a matter of seconds. That's what continues to blow my mind every time.