Cleaning LCDs?

I have several lcds that need to be cleaned, i don't mind buying whatever chemicals needed. Anyone know how to do it?

I use distilled water (tap water will streak). I've read "distilled water + 50% isopropyl alcohol, mixed half-and-half" is good. Also, you can buy cleaner at the computer store, but it's a bit costly.

Light, light pressure on the screen, only....
 
hi.
Cleaning the LCD Display
• MAKE SURE THE LCD DISPLAY IS TURNED OFF.
• NEVER SPRAY OR POUR ANY LIQUID DIRECTLY ONTO THE SCREEN OR CASE.
To clean the screen:
1. Wipe the screen with a clean, soft, lint-free cloth. This removes dust and other particles.
2. If the screen still not clean, apply a small amount of non-ammonia, non-alcohol based glass
cleaner onto a clean, soft, lint-free cloth, and wipe the screen.
To clean the case:
1. Use a soft, dry cloth.
2. If the case still not clean, apply a small amount of a non-ammonia, non-alcohol based, mild
non-abrasive detergent onto a clean, soft, lint-free cloth, then wipe the surface.