He bought a strong industrial electric fan and pointed it at the assembly line. He switched the fan on, and as each soap box passed the fan, it simply blew the empty boxes out of the line.

This exerpt from The Case of the Empty Soap Box at Jon Strandes’ Storyblog is an excellent example of the Do As Little As Possible pattern I metioned earlier.

Some equally engaging stories of simple solutions can be found in the highly recommended Are Your Lights On?: How to Figure Out What the Problem Really Is and Ideas are Free: How the Idea Revolution is Liberating People and Transforming Organizations.