I got a few more...
1. Coffee, black. Lots of it.
2. Go down with the ship.
3. Keep your shirt tucked in.
4. Ma'am is acceptable in a crunch, but "captain" is preferable.
5. Respect new life... unless it's a new lifeform the transporter unintentionally created.
6. Never screw over your crew...
7. ...but if you find some poor dopey ensign who idolizes you, feel free to wreck his career by not promoting him.
8. Don't be afraid to delete the wife.
9. The temporal prime directive is really just a strongly worded suggestion.
10. NEVER leave a member of your crew behind. Not even that ensign you screwed over.
11. The only thing you have to fear is fear itself... unless you can make fear afraid of you.
12. Thirty-eight torpedoes is whatever you say it is.
13. What happens on the holodeck stays on the holodeck.
14. Believe in second chances...
15. ...but take precautions, not everyone deserves them.
16. Bald heads worked for Picard and Sisko, but the Bun of Steel rules all.
17. Avoid sickbay unless absolutely necessary.
18. Leave sickbay as quickly as possible.
19. If the EMH complains because you're avoiding/leaving sickbay, just ignore him.
20. If the EMH tries to relieve you because you're avoiding/leaving sickbay, see Rule #19.
21. If a flesh and blood doctor tries to relieve you because you're avoiding/leaving Sickbay, see Rule #19.
22. Never underestimate the power of the Janeway Death Glare.
23. When the captain removes her uniform top and grabs a phaser rifle and a knife, you'd better run.
24. Logic can be used to justify anything. That's its power, and its flaw. (awesome line)
25. Every now and then, surprise people with a hidden talent (playing pool, dancing ballet, and gutting Borg with a bat'leth all apply).
26. Never date a subordinate.
27. Periodically remind the crew that you don't need a second person to set the autodestruct.
28. Never be unreachable, even while getting a massage.
29. Don't take crap from anybody... not even obnoxious near-omnipotent beings.
30. Don't break up the family (derived from "always work as a team")
31. Sometimes you're wrong. Unless the writers feel like you have to be infallible because you're Captain Frickin' Janeway, in which case you'll only be wrong when you think you're wrong.
32. One voice can be stronger than a thousand.
33. Fear exists only to be conquered.
34. When you're a Starfleet officer, weird is often part of the job.
35. When we turn our backs on our principles, that is when we cease to be human.
36. The day may come when you have to accept the inevitable... but not today.
37. With a few exceptions, the Borg are better in pieces.
38. Stand up to bullies.
39. When going into space, leave your dog at home.
40. If you can handle being turned into a salamander, you can handle anything.
41. When you make a mess, make something good come from it.
42. You can’t just walk away from your responsibilities just because you made a mistake.
43. It's never a good thing when everyone agrees with you.
44. Always be curious.
45. Reach your full potential, and help your subordinates do the same.
46. When going through dark times, sometimes the worst thing you can do is think too much.
47. The past is the future. The future is the past. It can give you quite the headache.
Last Rule: Did we mention coffee?