New Document Automatic Preferred Guides

Every time I start a new project in Photoshop I find myself placing guides at 50% vertical and 50% horizontal.  I realize that other people may have both similar and very different preferences -- but wouldn't it be cool if we could spell out what sort of guides we like somewhere in preferences, and then have them automatically be on every new document?

...and if you don't like guides, then you know...don't use them. 🙂

thoughts?