Suggestions for CD Lens Cleaner?

I am just trying to find out if there are any improvements of using a disk that cleans the lens in cd players, I dont know if it would scratch the lens or even help. If they are good please let me know which one to buy, I own a very expensive cd player so I may not want to play around with such a thing unless it is safe, please good quality suggestions. THANKS Ps-I just figure I take very good care of my cds as not to get dirt in the player in the first place,however there is no way of keeping out all dust so I want to treat the laser as well if it will help. I have no problem with cd playback im just tweaky and want to take good care of the equipment.