This morning I stumbled upon an article about dressing up based on only 3 main types of silhouettes:
1st Body Type - Notice that that the shoulders is narrower than the hips
2nd Body Type - the hour glass figure. The shoulders and the hips are proportioned making the waist very visible/defined.
3rd body type - the shoulders are broader than the hips.
The main idea of working with these three silhouettes is basically clothing yourself based on your bone structure irregardless if you are on the skinny or on the voluptuous side. Here's a more detailed version of this idea.
What's your body type? I guess I would fall on the 1st one. :P