A quick Doctor What Product Suggestion: The iKlear Complete Cleaning Kit is great.
I thought at first that it was a stupid overkill for the price; I mean it only has a few cloths and some cleaning solution.
But I really wanted the little cloth to protect the screen. I’ve seen how horrible MacBook screens can get from keyboard scum.
However, after I bought it I really liked the cloths and the cleaner. The extra cloths are really nice and big; the cleaner actually really works well. All in all I think it was worth it.
I was reminded of how helpful it was when I had a slight “drinking problem” and spewed beer across my screen and keyboard. :-(
After it dried out, the iKlear stuff did a great job removing it.