Keeping your LCD clean is highly recommended, and it’ll make your viewing experience much more pleasurable =) One thing most people don’t do is turn the screen off when cleaning it. This allows you to see every little spec of dust! Use *very* soft cloth, like microfiber to gently wipe down the screen. Be careful not to use anything rough that could scratch or damage the screen. Whatever you do, do NOT push on the screen. This can cause pixel burn and you might as well throw it away if that happens. If you must use liquid to clean it, you can dampen the cloth with distilled water, or use a 50/50 mix of distilled water & vinegar.