If you want to be a real asshole, let North Korea make over South Korea however 'Lil Kim likes.
Or even better, make 'Lil Kim your Executive VP for World Domination. 
I’d probably do lots of bad things. Just like a good totalitarian dictator should.
Nah, I’m thinking a 25 sentence to be Hello KittyLand.
The entire nation. Every person. Every building. Every car.
There would be an extra driving test you could take to prove you are a great driver, and if you pass you get issued a paint ball gun with permanent paint that you would be allowed to shoot at the cars of bad drivers. Get 10 paint splotches on your car and you lose your license forever and pay a huge fine to support mass transit.
First part is completely right, the second part shows that you really are not ready for this whole assholish thing, lemme show you the way
Get 10 paint splotches on you car and the police execute you on the side of the road
Much better way to get your point across 
Capt
•I think I’d be more intimidating…by not explicitly spelling out what would displease me, or why, or what the specific penalties would be. Or how it comes to my attention.
People would just get calls in the middle of the night or office visits in the middle of the day by me (or my agents), noting that I was very upset with whatever they’d done, and perhaps they’d like to reconsider? Or maybe the agents would just show up and, without a word, smash a couple of the offender’s joints, then leave. This would continue in escalation until the offending behavior was stopped. If the offender was able to figure out what they’d done wrong.
(Let’s just say that more than a few comic and television company execs would be left whimpering on the floors, repeatedly. They don’t seem very bright. 
)
•I would order the establishment of a climate-change control agency, tasked with preventing destructive climate change via regulation, terraforming science, and human sacrifices to the obviously displeased pagan gods. The Pyramid of the Sun will, obviously, be reopened for business immediately.
•Regions that wished to outlaw abortion would be allowed to decide the matter via referendum, the results of which would be cheerfully enforced…and accompanied by a dioxin spraying campaign.
•More alternative conflict arbitration and sentencing…principally via dueling and gladiatorial combat.
•Saturday Morning Cartoons are to be brought back, with no sports preemptions. (I made that if-I-ever-take-over-the-world vow when I was 11 years old, and I’m sticking to it, by god.)
and all tobacco ceos and stockholders and lobbyists charged for mass murder as serial killers. punishnent to be made blind deaf and mute and spend the rest of their lives trapped in small rooms with the equivelent of a three pack a day habit of second hand smoke in the room at all times except for two days every two weeks (so they can suffer withdrawal)
the term COPD is dismissed and death certs once again show the REAL stats of death by cigerette smoke., no air freshener, fans or anything else to help. no medical care when they get cancer, let them rot screaming.
Just to add what I myself might do:
I’d be so politically incorrect that I’d make Archie Bunker look like a Berkeley undergraduate. My response to the howling mobs would be machinegun fire. And degradation ceremonies where those who hated and opposed me would have to admit how wrong and evil they were, and humbly beg my forgiveness.