How to save gas via ‘hypermiling’

Hypermilers say many of their techniques can help even drivers of conventional cars boost their gas mileage:
— Avoid jackrabbit starts.
— Slightly overinflate tires.
— Shift into neutral when going downhill.
— Drive 5 mph below the speed limit, but stay in the right lane.
— Coast to a stop at red lights.
— Shut off the air conditioner.
— Monitor your mileage on a real-time gauge and adjust as you go.
— Draft sensibly behind tractor-trailers.
— Know alternate routes to avoid stop-and-go traffic.
— Park at the highest point in parking lot and let gravity get the car moving.