How to Make a Picture Hanging Tool

Have you ever had to readjust a picture hook to get your work of art in the right place?  Then you need to watch this video.  Get the perfect hook placement without buying an expensive tool.  I think the picture hanging tools for sale cost too much for being a piece of plastic.  Don't get me started on high tech laser levels to hang picture frames.



Why buy one of these fancy picutre hanging tools:
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When you can make your own?