Cleaning a glossy screen

What's the safest method to clean a slightly streaked glossy screen? With my old matte screen, I used a mixture of rubbing alcohol and water, which worked great, but I'm not sure if it's safe on a glossy.

I just use the supplied microfiber cloth and wipe it down. If there are stubborn spots, I'll use that same cloth and dampen it with some water.

What does the documentation say that shipped with your computer?

I use a microfiber cloth dampened with some water and dry it immediately so there's no streaks left. Works wonders.