Ways to conserve gasoline while driving?

other than carpooling! i'm not interested in answers like parking a block away or walking. i want to know, does driving fast waste gas? if i drove from point 1 to point 2 at a fast speed, would it use more gasoline than if i drove from 1 to 2 at a slower speed? are there any other techniques that i can... show more other than carpooling! i'm not interested in answers like parking a block away or walking.

i want to know, does driving fast waste gas? if i drove from point 1 to point 2 at a fast speed, would it use more gasoline than if i drove from 1 to 2 at a slower speed?

are there any other techniques that i can use to use less gas while i'm in the car?

i have a jeep liberty and the gas just gets eaten up.
thanks so much!! :)
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