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					Originally Posted by ferretchucker  That's how I did it.  A 5x5 chart with house numbers on the top and the different factors along the side.  Got pretty stuck in the middle, which is where I got told to clump information together.  Also, I was told that the chart was the best way to do it. | 
	
 I do it like the ones here. You might like this site.
http://www.puzzlersparadise.com/page1034.html