I don't know how far back to go but I guess I'll start by saying that you should start out with good brass. You get what you pay for in that category for sure. Take your die apart and clean it up before you use it.
Lately, I've been using Redding case lube. I like it because it works well, don't turn sticky and cleans up easily. Don't use too much lube!!! Don't get any on the case shoulder. Brush the inside of the case necks first though. I been using my finger tips to smear a thin coat on the neck. I use a Q-tip to put a bit inside the neck too. If the brass is new, FL size it but be careful if using the directions that come with the dies because they can cause you to "over size" your case and push the shoulder back too far resulting in poor accuracy and split case necks. Adjust your dies so that you are not moving the shoulder back at all. (there is an entire thread on just how to do this)
That should be enough to get you into trouble. Good luck.
One last suggestion: Some guys like to size a case, then turn the brass 180 degrees and size it again. I tend to agree that it helps.
Tom
