5 - Avoid rapid acceleration and hard braking
These sort of actions waste gas. Instead of braking hard, coast from as distance. Use your brakes as sparingly as possible. Also, be aware the slamming the gas will only dump more fuel on than is necessary. Conservative acceleration will generally return the best fuel economy.
The braking part is what confuses me. How does hard braking hurt mpg.
Maybe I just read it wrong.
I like to think of my momentum (residual speed) as an investment. If I have to brake hard and throw it away, then I purchased too much and have to waste it. If I coast and don't quite go as far as I intended, I can always get more with the gas pedal. I try to anticipate where I will slow or stop as far ahead as possible so I can manage the perfect amount of momentum. In traffic, with hills and numerous stops, it's a great challenge.
Reality is merely an illusion, albeit a very persistent one. - Albert Einstein