What is the best way to clean the screen of a Touch Screen Digital Camera?

Use lens cleaner cloths that are predampened in packages...easy, effective.

I'd use a lint-free lens cloth !

glasses cleaner (like eye glasses) use the nice cloth for glasses cleaner, which should do it. if not, also use the spray :) im not sure of the LCD stuff, but i doubt you need to buy anything that expensive personally, i use a dust cloth and it works fine (turn the phone off before cleaning!)

Use about half the recommended quantity of detergent, use the "woollen" cycle. No spin dry.