How do you prepare for a record show?

I have one coming in my area within a week.

I gone through many shows. At first I just attended. Later, I had some sort of idea as to what I wanted. Later again, I had become more aware of what might be accomplished by having a strategy.

So, given my enlightened history, and taking into consideration your thoughts, how do you currently approach an upcoming show?

One thing I do is limit my spending by having a certain amount brought with me.

I do think that now, I need to narrow things down to original pressings from the UK and the like... mono vs stereo..?
I make a short list of interesting items and, "stick to it".

Any other thought?