How to pre-stain wood effectively before applying the final finish?

To pre-stain wood effectively before applying the final finish, start by sanding the wood to create a smooth surface. Then, apply a wood conditioner to help the stain absorb evenly. After the conditioner dries, apply the stain in the direction of the wood grain using a brush or cloth. Allow the stain to penetrate for the recommended time before wiping off any excess. Finally, apply the final finish, such as varnish or polyurethane, once the stain is completely dry.