What is the best way to maintain a finish?
The best way to maintain most furniture finishes is to dust them. Lemon oil may be applied if you are maintaining a glossy finish. Most new furniture these days come with matte finishes; you should not use oils or waxes on matte finishes as they will become glossy over time. Beware of wax build up caused by some popular commercial products -- we've had to forcefully pry candlesticks off of furniture after the candlesticks got stuck in waxy build up.