I've always been a small house aficionado. Our place is 907 square feet and too big; too much wasted space. In a previous life I designed and built an earth-bermed, passive solar cord wood house of 648 square feet. If I had an opportunity to do it again I've got the design down to 480 square feet - the legal minimum for a residence in the area we'd like to relocate to.
Anyhow...thought I'd give you some links to small house/architecture sites that will spark your imagination.
How about living in a shipping container? Or a garbage truck? Check that out at http://www.apartmenttherapy.com. The http://www.tinyhouseblog.com has reams of info and links to other sites as well as a forum. Another interesting site is http://materialicious.com. Eye candy for anyone who's looking for inspiration and something different.
The typical American home is full of wasted space, poor design and unnecessary cost. In later posts, I have some small home pictures I've collected.
That's all for today folks. Going out to stack firewood and take a walk. Treesong