Better mileage

Did you know that shaving your head will get better mileage? Not only to you decrease wind resistance, but you're also reducing vehicle weight and improving your personal cooling which means that you can use the AC less so that your car can get even better mileage! Plus, drivers around you are stunned by your beautiful cueballesque noggin and will automatically get out of your way thinking you are a pro-wrestler or hitman or something. Bonus!