Clothing is mostly mass produced and one hopes to find pieces that roughly fit. I have a friend who is outside normal design ranges and fit just doesn't happen, but a surprising percentage of "normal" people have problems finding clothing that fits well. Some surveys suggest more than half of women can't find jeans that fit well enough to please them.
About a decade ago mass a few companies started working with schemes for mass customization of clothing - usually a person would have their body scanned producing a large number of accurate measurements and this data would be used to create very customized patterns which would drive automated cutting machines. Cornell even had a program studying the process.
A bit of this is done today, but it is still very rare. Others, like Lands' End ask you to make measurements and hope to provide something that fits better than off the rack clothing.
The current model of having clothing made in in the third world with several middlemen and huge profits is well established and anything new will be difficult - particularly when one has the difficultly of getting good measurements (unless you use a tailor or scanning booth, measurements by hand are not terribly accurate), a time gap of several weeks before you see the product, and a higher price. There is a lot of room for clever innovation.
But there is great promise. Americans spent about $439 billion on shoes and clothing in 2007 - about $1500 per capita and seriously more than many other "hot" economic activities.
I was looking at some obesity numbers and decided to find some numbers on human powered transport - short trips in various countries. An interesting plot emerges - it is *not* causal as several things have not be accounted for, but Americans were about as svelte as Europeans in the 1960s and had similar levels of activity.... hmmm
One of two surviving telescopes used by Galileo - when an instrument opens up a new vista and the right intellect uses it, the world changes. Curiosity and bravery were involved. The religious dogma did not allow thought. (some things don't change much)
We've come so far. Now instruments like WMAP, ACBAR and the Cosmic Background Imager have revealed the power spectrum of the cosmic background to a precision that we know the age of the Universe since the big bang is 13.73 +/- 0.1 billion year. An amazing result and a fantastic example of human curiosity and ingenuity. Soon Planck will fly and give a better result.