Here's a snippet of things that make me smile when I see them:
Heavy duty stainless steel floor registers. ( Is this weird?) Another ReStore score.
Fancy schmancy wall faucets at bargain basement prices (from a Las Vegas hotel that had its financing yanked after all the materials were ordered, or so the story goes).
Finding ways to build things at 1/5 the cost we're originally quoted. Here's a mockup of a cantilevered steel stair...I think Jean is more excited about this component in the house than anything else.