another useful one to avoid creating .DS_Store files on network volumes:
defaults write com.apple.desktopservices DSDontWriteNetworkStores true defaults write com.apple.desktopservices DSDontWriteNetworkStores trueI used to have my Dropbox folder on my secondary (NTFS formatted) harddrive so I could use a symlink to share my Dropbox folder across OSX and my Windows 7 Bootcamp install instead of having duplicate Dropbox folders for each OS. It ended up spewing .DS_Store files all over my employer's company dropbox folders.
Asepsis enables you to redirect creation of .DS_Store files into a special, dedicated folder. With redirection, Finder works the same way but .DS_Store files are isolated in the dedicated folder /usr/local/.dscache.
find ~/Dropbox -name .DS_Store -exec rm {} \;# hidden icons in dock are semi transparent
defaults write com.apple.Dock showhidden -bool YES