All about economics on the web

I got few email recently, with requests for articles about gas saving. So i will publish few articles about fuel economy in near future. Here is the first one:
Nempimania: An obsession with getting the best fuel economy possible.
If you’re really feeling it at the pump and enjoy reading about fuel economy then quite possibly you [...]

Well as we said in one of previous articles, economy is a science. What does it teach us? What is the main thing that economy is trying to do.
1. To achive a given goal with minimum resources.
2. To achive a maximum effect, with given resources.
So by saying someone is acting ecenomical, we mean that he [...]