unless there is heavy traffic behind me i decelerate to slow down (and brake only when i get under 30mph or so)
i also downshift as my speed drops.
deceleration is a way to get good gas mileage.. thats where your gas mileage skyrockets
when sitting at a red light i leave it in neutral.
its easier on the release bearing. and not to mention i dont have to hold my foot down all the time