When people want someone to phone them, whilst standing in the distance they hold a pretend phone to their ear and mouth out the words "Call me" and then they exchange cheesy smiles.
The cop who solves the crime is always the one who was suspended or laid off from his job.
Single women always watch movies cross legged, wearing nothing but a man's shirt, and eating ice cream straight out the tub (usually Julia Roberts?)
Women always wear dungarees when painting their flat and smear paint on their face by accident. They always seem to look like they are having loads of fun and the husband smiles at her from the doorway in approval.
Whenever the navigator says during a car journey, "Where are we?" and looks puzzled at their map, it's the law that they end up down some lonely dirt track and ask the local psycho for directions.
The most common cliche I've seen is that cars never start when someone is trying to drive off quickly but they always manage to start them just at the very last minute (usually just as the murderer is about to drag them out the car)