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					Originally Posted by Icky Thump  Vat tax.    Gas tax. Say 5 bucks a gallon.  It's amazing that when you are forced to curtail your driving (by let's say lack of supply of gas versus demand) that you can.  I live in the burbs and found myself walking to the store, combing trips and not driving for the purpose of driving.
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 Vat's hard to implement and super complex, however, isn't it?  
The gas tax is politically and practically impossible.  We'll overuse oil until either the environment is so fucked up it will become a national security emergency, or supply runs out.