No, not at all. Dust and minor fingerprints shouldn't need anything but the cloth to remove.
Now if you have something on your fingers then I might use just a bit of water, but then, you shouldn't be touching your screen with peanut butter on your fingers.
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Now if you have something on your fingers then I might use just a bit of water, but then, you shouldn't be touching your screen with peanut butter on your fingers.