Disclaimer: I don't own the Star Wars galaxy, and neither does Palpatine. Ha!
Palpatine: The Complete Idiot's Guide for Evil Politicians
Credentials: One-Time Senator of Naboo, Self-Nominated Supreme Chancellor of the Senate, Two-Faced Deceiver, Emperor of the Galactic Imperial Empire, and Other Useless Titles
-Become Supreme Dictator of the Galaxy by first becoming a Sith. That way, you can sense anything anywhere.
-Next, cloak yourself with feelings from the Dark Side. It 'clouds' the mind, and confuses Jedi so they can't sense what's right under their snooty noses.
-Take a young protégé under your wing, continually compliment them on how they are so much more powerful than anyone else. They will become addicted to your comments and will follow your faithfully.
-It's fun to confuse Jedi. Adopt another identity for your Sith persona, if you have one. Or whatever alternate personality you have.
-Make other politicians who have the good of the people in mind look bad. Or just kill them. They will hinder your efforts to become Dictator of the Galaxy.
-Note to self: do not hire bounty hunters anymore to kill my opponents. They FAIL big time.
-Take your time. It takes years to become a fully-matured evil politician.
-Spend at least 20 years planning out galaxy domination. It sure helped me!
-I will revise my statement from earlier: your protégés will be mostly faithful, and you have to replace them often. I had three. 2 of them died, and my last one killed me, and then he died too.
-Nothing compares to the powers of the Dark Side… oh Sithspit, I just gave myself away!
-Have a plan to get rid of those interfering 'keepers-of-the-peace', I mean, Jedi. Just don't copy my Order 66, or I will haunt you as a Sith ghost for the rest of your life.
-When building your own ships or planet destroyer-space station, by all means do not place convenient ventilation shafts anywhere. Jedi can sneak aboard, or hide, or kill you by tossing you down one, or blow up the entire station.
-Manipulate people from both sides of a war until things are where you want them. Win-win situation.
-Come to the Dark Side… we have cookies.
-If you die eventually, do not ever make a cloning cylinder to regenerate, because somehow, that blasted son of Skywalker will find a way to destroy it. Even if by accident.
-Do not ever aim your Force lightning at a lightsaber. I accidently disfigured my own face.
-Blame the Jedi. Always blame the Jedi. And Bush.
-Having a father-son duo on your side will help greatly. But not if they kill you.
-Do not let the Nemoidians have a part in your dictator plan, because they have their own ambitions. Viceroy Gunray was always talking about Padme Amidala: "Is she dead yet?"
-Always encourage a Jedi Padawan to do the wrong thing. It's funny to watch their Master run around like a chicken without a head.
-Keep your female protégés, if any, FAR AWAY from males. Mara Jade, one of my best, was supposed to kill Luke Skywalker. But she fell in love and married him instead.
-Make and keep connections. You learn stuff about people… like blackmail info.
-Get a better army than I did. Stormtroopers are numberless, but extremely weak-minded.
-Hire a crazy or insane lady to man your top-security prisons and Intelligence network. Preferably not a greedy one who will take over when you're dead.