I've worked some hypermiling concepts into my driving but I don't really go full on with it. I still haul ass on the highway and will gun it when needed.

The easiest things people can do are overinflating your tires by 10-15% along with watching both upcoming stop lights and the brake lights of the cara in front of you and not just the one directly in front of you, when it looks like traffic is slowing down, let off the gas and coast. I coast as much as I can, especially towards red lights, stop signs and highway congestion.