Sand away loose paint chips or rough edges from the furniture to create a smooth, even surface. Do not worry about removing all the original finish; primer will cover it up.
Paint a layer of primer over the piece. Allow it to dry completely.
Paint the piece with the darker paint color. Wipe excess paint from the piece with a clean cotton rag. Allow the paint to dry completely.
Sand corners and areas of the piece that would experience normal wear over time. This will remove the top layer of paint and primer so bare wood is visible underneath.
Apply a coat of crackle glaze over the painted surface, using single brush strokes. Allow this to dry.
Thin white latex paint with water until it is nearly translucent. Test the paint thickness on a scrap of cardboard or plywood to make sure you can see through it. It should give the cardboard or plywood a frosted effect.
Paint the piece with thinned white paint, covering all areas, including the exposed wood. Your brushstrokes should go in the opposite direction of how you applied the crackle glaze. Let this coat dry completely.
Sand areas prone to wear if desired to achieve the effect of worn-away paint.