In the barn loft, Richard "clears up" the mysteries of clogged bathtub drains. Then, Tom helps Marblehead, Massachusetts homeowner Terry Lavelle replace his double-hung window weights with spring loaded sash balancers. Afterwards, Tom shows Kevin how to insulate the empty window weight pockets to prevent cold winter drafts. Then Tom, Richard, Kevin and Roger ask, "What Is It?" Finally, Roger helps a very thoughtful tenant, Brett Campbell of Arlington, Massachusetts, plant a low-maintenance garden for his elderly landlady.