Semi-related, but what's the fastest vi way to get to the space right after the first word? For example, I might type

> ls /etc/foo/bar

and have my cursor at the end when I realize I want to type ls -l instead. I know there's got to be a faster way than what I'm currently doing, but I'm blanking.

(Yes, I know sometimes tacking on the command line switch at the end will work, but that's not true for all commands).