Mix 3 parts olive oil with 1 part vinegar or lemon juice. Lemon juice has a more pleasant scent than vinegar.
Place the mixture in a jar with a tight-fitting lid. Label the jar with the contents.
Dip a soft furniture cloth in the cleaner. Rub the cleaner into the wood furniture. Buff it dry with a clean cloth.
Clean the wood with the solution at least once a week so grime doesn't build up and the wood doesn't dry out. Store the cleaner in the refrigerator between use so the oil doesn't go rancid.
Combine 1 pint mineral oil with 1 teaspoon of lemon oil. Alternatively, mix 2 parts lemon juice with 1 part each vinegar and linseed oil.
Dip a soft cloth into the oil mixture, barely dampening it.
Rub the oil into the wood, using a circular motion to spread it. Dampen the cloth for further application when it is nearly dry and the oil is no longer spreading.
Store the cleaner in a sealed, labeled jar. Wash the cleaning cloths immediately following use.