Do you have a chair with wobbly legs that seems ready for the junk heap? Wood furniture and cabinetry often are put together with wooden dowel joints or round mortise and tendon joints. Often the wood dowel or tendon dries out. Over the years, it often shrinks or wears down. The result is loose joints and wobbly furniture. You can remedy this with glue. First spread carpenter's glue on the dowel; then wrap it with cotton thread or fine string, add more glue and reassemble the joint. If it isn't tight, do it again. And that's the On The House tip for today.