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The only problem?  Awful or no detail.  Why?  Because no existing tutorial teaches you how to even think about tackling detail issues.  Oh, there are a couple I have seen, but they pretty much assume you know everhting already and gloss over the finer points. 

I agree and is true of many tutorials (not just for making clothes, etc.) The one writing the tut seems to assume a lot of the reader that they are experts or something. Very frustrating.

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This one guy I watched created an entire mesh with polyboost in about 50 seconds.  It was like watching that old PBS show where the guy would do landscapes in forty minutes with only a spackle spreader and a tube of off-white.

You must be referring to the late Bob Ross. Always liked watching him make his 'happy trees'! LOL!