I found this great Tip over at “A New Mac Tip Everyday” Check out his website for the comments to this post.
This is a great tip submitted by Brian Oanes: Closing a Finder window when loading an app or a file! This tip really surprised me at first and I couldn’t believe I didn’t learn about it before. It is pretty well known that holding down “Option” while switching application will hide the application you just left. What is new to me however, is that you can double-click on an application or a file in the Finder to load it while holding down “Option” and it will automatically close the Finder window you were in. Using that, you can load what you need and when you come back to the Finder, you won’t have many useless Finder windows open. Thanks for the great tip Brian!