Service Scrubber 1.0
Peter Maurer’s Service Scrubber provides a unified interface for hiding services from the menu (thus removing clutter), changing their keyboard shortcuts, and moving them to the top level. Behind the scenes, it modifies the applications’ Info.plist files and keeps backups of themthe modified keys so that you can revert if necessary.
I should perhaps mention that Service Manager has done this for a while. I like it, and even recommended it in the DropDMG manual. However, I like Service Scrubber better because it's not a pref pane, it has a fully resizable window, and it can show a list of all the services at once, with the proper order and hierarchy.