Hi. After checking out the Samsung site, I came across
this answer to your question. Long story short - they recommend using the supplied cleaning cloth for regular cleaning and using Monster ScreenClean for fingerprints and grease. After reading reviews on Amazon for ScreenClean, I'd hesitate to use it.
I've used Radtech ScreenSavrz cloths on my two MacBooks (first one since 2006) and have been very happy with them - they aren't expensive and mine show no signs of wearing out. They also make a cleaning solution that I've never used. I'd also consider using an eyeglass cleaning cloth if you have one around.