Remove all outlet and switch plate covers with a screwdriver and take down all wall hangings.
Use a putty knife to patch any nail holes or cracks with a spackle compound.
Mix a mild detergent and water in a bucket. Dip a cloth in the mixture and clean any grease or dirt on the walls.
Cover the floor, furniture and other surfaces in the room with plastic drop cloths.
Use painter's tape to cover any areas you do not want painted, such as baseboards or ceiling edges.
Apply a coat of primer with a paint roller. Allow it to dry.
Paint the walls with your base coat color using a paint roller for larger areas and a paintbrush for hard-to-reach edges and corners. Allow the paint to dry.
Mix together four parts of glaze in a dark brown tone to one part of your paint color. Dampen a sea sponge and wring out any excess water. Dip the sponge into the glaze mixture and blot the excess on a paper towel. Press the sponge against the wall and rotate it in different directions to create textures similar to that of an old, rustic wall. Allow to dry.
Apply a clear water-based polyurethane over the faux finish with a paint roller to help protect the surface of the walls.