As a carpenter, I much prefer building with wood. It's very user friendly, has gorgeous qualities ... and it's much easier to steal. I know this because most every night, I spend several minutes with tweezers removing the small pieces of wood I've stolen that day, from my fingers and hands.

Sure, I do sometimes build with "tin can studs" ... but I just hate the color combination of grease and blood.

Probably most enviromently sensible "new" construction technique I'm noticed is hay bale construction. Bob