This has been an interesting thread! And I think Dennis Fazio's comment "Don't forget to clean the keycaps too while you're at it" is terrific! The cleanest TiBook *screen* will become dirty as soon as it's closed if the keys touching it are still dirty. Great observation, Dennis. > PS: Bill: have you tried the "Endust for Electronics" Wipes? No I haven't. I like to be able to re-wet the cloth several times while cleaning, and I think the spray works better for that. > I think Endust is too greasy. Regular Endust for cleaning furniture is too greasy, yes, but Endust for Electronics is not at all greasy and evaporates almost instantly. Bill