What is the best way to maintain a finish?

 

Answer:
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.