Once my power is secure, I will destroy all those pesky time-travel devices.
When I capture the hero, I will make sure I also get his dog, monkey, ferret, or whatever sickeningly cute little animal capable of untying ropes and filching keys happens to follow him around.
I will maintain a healthy amount of skepticism when I capture the beautiful rebel and she claims she is attracted to my power and good looks and will gladly betray her companions if I just let her in on my plans.
I will only employ bounty hunters who work for money. Those who work for the pleasure of the hunt tend to do dumb things like even the odds to give the other guy a sporting chance.
I will make sure I have a clear understanding of who is responsible for what in my organization. For example, if my general screws up I will not draw my weapon, point it at him, say "And here is the price for failure," then suddenly turn and kill some random underling.
If an advisor says to me "My liege, he is but one man. What can one man possibly do?", I will reply "This." and kill the advisor.
If I learn that a callow youth has begun a quest to destroy me, I will slay him while he is still a callow youth instead of waiting for him to mature.
I will treat any beast which I control through magic or technology with respect and kindness. Thus if the control is ever broken, it will not immediately come after me for revenge.
If I learn the whereabouts of the one artifact which can destroy me, I will not send all my troops out to seize it. Instead I will send them out to seize something else and quietly put a Want-Ad in the local paper.
My main computers will have their own special operating system that will be completely incompatible with standard IBM and Macintosh powerbooks.
If one of my dungeon guards begins expressing concern over the conditions in the beautiful princess' cell, I will immediately transfer him to a less people-oriented position.
I will hire a team of board-certified architects and surveyors to examine my castle and inform me of any secret passages and abandoned tunnels that I might not know about.
If the beautiful princess that I capture says "I'll never marry you! Never, do you hear me, NEVER!!!", I will say "Oh well" and kill her.
I will not strike a bargain with a demonic being then attempt to double-cross it simply because I feel like being contrary.
The deformed mutants and odd-ball psychotics will have their place in my Legions of Terror. However before I send them out on important covert missions that require tact and subtlety, I will first see if there is anyone else equally qualified who would attract less attention.
My Legions of Terror will be trained in basic marksmanship. Any who cannot learn to hit a man-sized target at 10 meters will be used for target practice.
Before employing any captured artifacts or machinery, I will carefully read the owner's manual.
If it becomes necessary to escape, I will never stop to pose dramatically and toss off a one-liner.
I will never build a sentient computer smarter than I am.
My five-year-old child advisor will also be asked to decipher any code I am thinking of using. If he breaks the code in under 30 seconds, it will not be used. Note: this also applies to passwords.
TO BE CONTINUED...