Small particles of dust may seem harmless, but enough buildup can scratch the wood's finish. Dust at least weekly with a soft, lint-free cloth (cheesecloth, a cotton diaper, or a cut-up old t-shirt all work wonderfully). Stay away from chemical cleaners for wood, as they contain silicones that can soak into the grain of the wood and damage it.
Clean Your Furniture
The finish we use is durable and resistant to most household spills. However, spills should be wiped up promptly to avoid potential problems. There is no reason to use any chemical cleaner for your wood furniture. Most cleaners contain abrasives that will scratch your wood pieces and can actually do harm to our finishes. Simple take a soft cloth, wet it, wring it out good, and wipe off your furniture. Go over that again with a dry cloth to completely dry the surface. This is all you need to keep your furniture looking like new for years to come.
Don't place a wood dining table over a radiator or right next to a heat register. The temperature swings could damage the wood with warping or splitting. Ultraviolet light from the sun and fluorescent fixtures can cause chemical changes in the wood and/or finish. Avoid placing furniture in an area where the sun will shine directly on it.
As with all woodwork, from flooring to trim, from dining tables to other furnishings, try to keep humidity levels in your home between 40 and 45%. Any lower could crack the wood and any higher could cause swelling. For most of us, this means running a humidifier in the winter and an a/c or de-humidifier in the summer.