oh one more.
stormy night, you wake up because of some strange noises coming from the old dusty attic in this house you've just bought. You decide to go check the attic. Same would go with the basement too.

Oh, BTW, just watched "Poltergeist" and noticed the following:

No one just leaves the Haunted House!

When running away it's always night time and most of the time it rains.

That's not so much a cliche as a part of the definition of Monster in the House that these films tend to follow. Sex is just the easiest of the seven deadly sins to depict on camera.

In general anybody sinning in any way is marked for death in these films.
It almost always rains at night in film, mainly because it makes it easier to avoid the characters flying because the camera isn't picking up the ground.
If you think that's odd, Jaws. People keep swimming even though there's a blood thirsty shark on the loose.

If there are two black guys, the first one on screen dies eventually, whereas the other won't.

People always greet each other by sneaking up on their friends and touching their back/shoulder/arm in a gentle/creepy/firm/assaulting fashion, whichever would be the most ridiculous in real life for a given situation.

HA! you're right, this one has always never failed to amaze me

Watch out if there is a window casually featured in the background behind the character. I'm not sure why, just be prepared.

If you're a vampire, always travel around with a big metal bulletproof box. The sun can come out at any point during the film, regardless of apparent duration of the night.

If any character is gay or a lesbian, the directors will either milk the characters sex appeal dry or kill em off in an instance.

Masked killers never talk.

Mothers can be very bad influences.

Not any point, only the most dramatic. The Dead series avoids a lot of standard cliches by making up a set of its own.

There's a subset of horror cliches in movies inspired by The Exorcist. Catholic horror, I guess? Creepy little boy or girl, dark forgotten secrets, devil howling with rage when defeated, protagonist ending up broken or dead.

Couple of very non-standard horror movies are Jacob's Ladder and Antichrist. Both are disturbing and frightening, second one's explicit and hard to sit through. Both are also thought-provoking.

This list here covers a good portion of cliches http://www.dreadcentral.com/story/51-worst-horror-movie-cliches

The ones I find the most eye rolling:
- "You know what I feel like checking out that nice spooky mansion/forest/hospital/amusement park/house/etc at night. What could possibly go wrong?" (idiots)

- "It's all in your imagination" (usually from a parent or an authority figure)

- Lets use music whenever the killer is nearby. Surely this won't kill suspense?

The teenage girl is the one who survives against the odds. Scream tried to break this rule, but fell foul of it regardless.

Vampires are so damn vulnerable they're probably eligible for disability benefits.

Characters always split up so as to make it easier for the killer / thing to pick them off one by one.

If someone's looking in a mirror, they'll most probably see more than their own reflection, accompanied by loud psycho sounds and/or shrieks that make you jump.

Yep, and in the most annoying cases only the spectators will realize this, because when it's all over and the credits are about to be shown, there will be a very subtle hint that the evil has survived, leaving the spectators with a feeling of unease (either because it's so embarrassingly cheesy or because they fear a sequel coming up). ;)