How can I properly prepare wood for staining, including the crucial step of pre-staining to ensure a smooth and even finish?

To properly prepare wood for staining, start by sanding the surface to remove any imperfections and create a smooth finish. Next, apply a pre-stain wood conditioner to help the stain absorb evenly. Allow the conditioner to dry before applying the stain in even coats, following the wood grain. Finally, finish with a clear topcoat for protection and a polished look.