I was messing around with my site URIs and stuff (looking at moving the site folder to a different location) when I temporarily hosed it by switching the "WordPress Address URL" and "WordPress Blog URL" to a different directory.
After that, I had some trouble signing into the admin account - everything was being redirected to the new directory. I tried renaming the old directory to the new one, but that didn't work either.
I was able to fix it by putting in the "update option" stuff in my theme functions.php.
Can someone explain to me what I did to break it and what I did to fix it?