Or a Ruler?
Well get yourself over to A Dress A Day for a great post on body shape types and how to dress them to achieve different looks.
I think one of the great obstacles women face as they grow older is the change in their body shapes. All of a sudden the clothes you wore so successfully for so long, no longer work. Coming to terms with that change and learning how to dress that new body is one of the first and perhaps most difficult hurdles to get over - but once you do, I'm thinkin' that the rest of the trip to a look you can live with, and yes maybe love, is a lot easier to develop!