Good article to point out on Efficiency.
Sometime back, another expert pointed that out as well.
Perhaps, dun need even expert to realise that.
From Lights, PC, Cars, there are so much room for improvements.
My list would be
To Improve/Promote:
1) Green Building/House (includes lighting, aircon, insulation, solar tech, building design etc)
2) Electric Cars or Serial Hybrid Cars
(which are 2-3 times more efficient than Toyota Prius, a parallel hybrid)
To Ban:
1) Light Bulbs
2) Non-Energy compliant Products: Eg PC, PC components, Aircon, Fridge etc
3) Coal Power Plant