Whilst trying to undo this hint, I came across an interesting feature in Safari. I wanted to see the contents of the /Volumes directory (which is normally invisible). In particular, I wanted to see the contents of a folder which had spaces in its name. I couldn't figure out how to do this using UNIX in the Terminal, and frankly, was too scared to keep playing there. So I simply opened Safari and typed file:///Volumes/ in Safari's URL area, and pressed Return.
A new Finder window opened containing everything I wanted to see. Nice!
[robg adds: We've run hints on using browsers to view local files before, but as far as I can tell, we haven't run one specifically pointing out the ability to browse hidden files. Of course, it's probably a lot easier to use the Finder's Go: Go to Folder menu item, then enter /Volumes, but if you happen to be in your browser, this will work -- it should work in any browser, perhaps with slight modifications to the URL.]
Mac OS X Hints
http://hints.macworld.com/article.php?story=20050414143629527