In this video we are shown the proper way to stain wood. For the demonstration in this video our host uses oak cabinets. Wearing rubber gloves, use a rag to apply the coat of stain. You will want to apply two coats of stain followed by a coat of polyurethane to protect your stain and the wood itself. A rag will ensure an even finish, as opposed to a brush that doesn't always get into the cracks and does not get the coverage that a rag does. With a brush you will have to worry about the bristles and runs. In addition, in the case of using untreated wood, using a brush could cause the stain to run and you would end up with streaks that would not come out. So the use of a rag as opposed to a brush is highly recommended.