How? I just can't do it any more.

That and paren matching. If I can get those two I'll use about anything. I use vim because I know it. If I had to learn emacs I'm sure I would. But those two are about it for me.

Well, that and incremental regex matching.

And line mode. ie: In most Windows-based editors if a line wraps and you hit the down arrow you go to the second half af the wrapped line. I want line breaks where I put them, not where the current screen width puts them.

I'm sure there's more I'd miss, but it's so natural now I don't think about it.