How do you move work more efficiently?

We have always been very concious of production standards, time in motion and scheduling timelines, but recently took a step further, and redesigned our lab to use Lean Manufacturing Practices. We have attempted to break things down into syncronized movements, limited numbers of tools and reducing work in progress. Of course there are all kinds of books on the subject, so it's pointless to try and cover it here, but so far, we have seen improvements in quality and consistency, more on-time delivery and fewer errors.