Annoyed by the vertical buttons in iTunes 10? Copy this into the terminal (mac only):
defaults write com.apple.iTunes full-window -1
Restart iTunes, and all is well - the buttons are horizontal again.
Want to get rid of the annoying ping dropdown after every entry in yoor music library, introduced with iTunes 10.1? Here goes:
defaults write com.apple.iTunes hide-ping-dropdown 1
Restart iTunes and you got rid of the ping button. To reactivate, just do
defaults write com.apple.iTunes hide-ping-dropdown 0