I frequently use a couple of services on the menu to diff two files (but most people don't have the diffing tool installed). "Open", "Open With", I use frequen

I frequently use a couple of services on the menu to diff two files (but most people don't have the diffing tool installed). "Open", "Open With", I use frequently. "Compress", "Rename" and "Get Info" come in handy now and then. I've never used (before now, to see what it did) "Make Alias", "Share", or "Use Groups". Not sure I've ever used "Duplicate".