I’ve been experiencing an odd problem in Finder for some time now. It intermittently duplicates the aliases under Places in the Side Bar. I have no idea why it does that but I finally figured out one way of fixing the problem. If like me you find that you have duplicated aliases in the Sidebar, all you have to do is delete the following file, then logout and log back in.

Once you have done this and logged back in you’ll find that you have very little under the Places heading, at this point you need to drag back into here any folder shortcuts you want to make available. Thanks to this my sidebar is now looking nice and tidy again …