some tips:

 - large polygons make the cloth behave 'thick' where small polygons make the cloth behave 'thin'. So, by subdividing selectively, you can create edges (hems?) and stiched strokes on your dress or T-shirt.

 - quad polygons make the cloth behave 'non-woven', like rubber, leather, fleece etc while tri's make the cloth behave like 'woven' like linen, wool, silk.

 - clothroom parameters are a world in themselves. The default settings are for common tablecloth. You might experience a need for different settings for properly representing leather, silk, lace, a medieval queens robe etc. Be my guest (Robynsveil started a lengthy thread on this a yer ago, having me and Bagginsbill kicking in. Great fun).

all the best.

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Usually I'm wrong. But to be effective and efficient, I don't need to be correct or accurate.

visit www.aRtBeeWeb.nl (works) or Missing Manuals (tutorials & reviews) - both need an update though