To help you with real life preferences, you can make the invisible files visible using some Finder commands...
I know of invisible files, but Joe is talking about hidden preferences. I'd love to see some apps I know and love hidden preference and where macpilot does this.
I don't think what Joemikeb and kevs are discussing are invisible files; they're discussing hidden preferences—an entirely different matter.
But ironically enough, enabling invisibles in Finder
does involve accessing its
hidden pref...
defaults write com.apple.finder AppleShowAllFiles -bool TRUE
...so, it's all relative.
[edit: actually, no irony perhaps... that's probably exactly what Alex meant to convey.]