what do you use to clean your monitors and scanners? i had a bunch of kids over in the last few days and now i have smudges all over my trinitron . they also got into the scanner which had reletively few smudges and fingerprints on it before. i was going to use windex, but i figure water would be the safest thing to use. i was also thinking of using a eyeglass lens spray. whats the best for these surfaces?