Getting rid of those annoying “Open With…” duplicates

Getting rid of Open With duplicates - All this

"This is the problem: You want to open a file using something other than the default application. You right-click its icon in the Finder, choose Open With, and a submenu pops up with an absurd number of duplicate entries."

Dr. Drang solves a problem I've had for the longest time. His solution involves doing things at the Unix level in Mac OS X. For the not-quite-so-geeky people like myself, here's a Keyboard Maestro script that you can download that does the same thing, and is configured to run daily at 5:30am.