Attached Link: T59 Cloth workshop

Using the right modeler for you is the first step. I tried all the demos before I found what worked for me. Modeling apps are a very personal thing. What works for one person may be a nightmare for you. I don't use Carraras modeler, I don't need the stress. I use hex2 and silo depending what computer I'm using. I use Shade 8 for curves and it toon renderer.  Wings 3d for the rest that the others do but is faster for me in Wings because that is where I learned in.

I block model quite a bit. What bwtr said about loading a cube and try anything and everything you can to it untill you start getting what you want, is how I did it.* * I also load reference images to work with.

If you have Hex, try my tutorial at PoserPros. I made it for beginers to show them a few easy things and it starts with a CUBE.

Practise is the real key. The more you put into it the better the results.