Best way to clean an LCD screen?

I bought a new 21inch lcd around April and since then its getting kinda smudgey and spotty (idk how considering I never touch it but I do have a d-baggish brother who uses it and my dad as well)

What kind of liquid would do the best to clean the screen w/o doing any potential damage? It's a plastic screen so I'm kinda hesitant to use any harsh glass cleaner on it.

Plastic screen? As in it doesn't make waves on the screen when you touch it? KHAndAnime

soft cloth and water apply a small amount of water to cloth and not directly on the monitor. lcd cleaning kits usually just cause headaches so avoid them.

soft cloth and water apply a small amount of water to cloth and not directly on the monitor. lcd cleaning kits usually just cause headaches so avoid them.

10MP

Plastic screen? As in it doesn't make waves on the screen when you touch it? KHAndAnime

Don't use glass cleaner at all, even if it does have a plastic surface. Use LCD wipes, or go over it with a dry microfiber cloth.Xeros606

[QUOTE="Xeros606"]Don't use glass cleaner at all, even if it does have a plastic surface. Use LCD wipes, or go over it with a dry microfiber cloth.blues35301

[QUOTE="blues35301"][QUOTE="Xeros606"]Don't use glass cleaner at all, even if it does have a plastic surface. Use LCD wipes, or go over it with a dry microfiber cloth.Xeros606

[QUOTE="KHAndAnime"]Plastic screen? As in it doesn't make waves on the screen when you touch it? blues35301

[QUOTE="blues35301"][QUOTE="KHAndAnime"]Plastic screen? As in it doesn't make waves on the screen when you touch it? KHAndAnime