iTunes8: how to hide the genre browser column and the iTunes Store arrows

Apple has done it again and removed silently the possibility to change some options in iTunes 8, notably the possiblity to hide the iTunes Store arrows in the track lists, as well as the "Genre" column in Broser mode: this was previously possible through the Preferences, but not any more.
But they haven't removed the settings, they simply have removed the GUI options for them. So if you want to turn these "features" off, quit iTunes, fire up your Terminal.app and type the following, then hit RETURN:
defaults write com.apple.itunes show-genre-when-browsing -bool FALSE
to remove the genre column or
defaults write com.apple.itunes show-store-arrow-links -bool FALSE
to hide the iTunes Store arrows.
Type the same with TRUE instead of FALSE if you want to show them again.