They may not look inspiring, but deep in the recesses of their brains they have these little ideas--a fast-food restaurant concept no one has ever anticipated, an assembly-line innovation that can lower production costs by 50%, a retirement-plan wrinkle to save everyone's 401(k)--and, someday, assuming they can find their toothbrushes amid the stash of moisturizing-cream bottles in their travel bags, they are going to realize their dreams.