To answer this question, hybrids tend to be more sensitive to changes in load, making those techniques more significant. So while they will save mileage in any car, due to the nature of how hybrids gain efficiecny by downsizing the engine, you will see a more significant difference in hybrid mileage by using techniques -- especially braking techniques that maximizes battery recharging -- than on standard cars. So while you can improve a standard car mileage with technique, the potential on hybrids for improvement is much greater.

While I don't expect to see classes on how to pulse and glide, or other such techniques, their engineers coudl actually incorporate some of those techniques into the cruise-control system, in a way that is transparent to the driver, such as automaticallty cruising for some length of time in all-electric mode, then periodically running the engine to recharge the battery -- pulse and glide using the batteries instead of varying the momentum on the car as a means of storing energy.

Another technique mentioned on here is to cycle the air-conditoner to run on max when going downhill (I do this, as I go down a large hill every day from my house) then on a lower setting when going on the flat ground, and off when accelerating. This entire routine could be programmed into the "econ" mode on the air conditioning system, and done automatically by the car.

While suggesting peopel carry buckets of ice is a bit extreme, that doesn't mean there is not room for improvement in the air conditoining and ventilation systems. I think a lot of the need for A/C could be reduced by introducing wider, more efficient ventilation ducts throughout the car to circulate the air better. Another option would be to ventilate and cool the actual seats themselves, in addition to or instead of the whole car (cooling the people is what matters).