Multiple Entries in Finder’s “Open With…” Menu

http://itpixie.com/2011/05/fix-duplicate-old-items-open-with-list/#.UIdsirTiMUU

This link helped me a ton when I was trying to rid my MacBook Pro of multiple entries for the same program in Finder’s right-click “Open With…” menu. It wasn’t something that stopped me from getting things done, it just annoyed the heck out of me.