How can I create a strong and durable wood filler using glue and sawdust?

To create a strong and durable wood filler using glue and sawdust, mix equal parts of wood glue and fine sawdust until you achieve a thick paste-like consistency. Apply the mixture to the damaged area, pressing it firmly into the wood grain. Allow it to dry completely before sanding it smooth. This homemade wood filler is effective for filling cracks, holes, and gaps in wood surfaces.