It is always a good thing to show up early to the show floor. You can see if your frieght has arrived, among other things, but basically get the "lay of the land."
Once you get past the usually who-ha of wrist bands and where things are, you get to the booth space to see what awaits you. For example, when I arrived at the space at NACStech at the Gaylord in Grapevine, Texas, I was greeted with a few surprises. Not what I wanted, but not insurmountable.
I specifically had asked when I could arrive to lay down CAT 5 cables for our network BEFORE the carpet was to go down. When arrived at the agreed-upon time, the carpet and pad were already down. No mater, the contractor guys were there and rolled things back. The engineer and I made quick work of getting cables down and labeled. A short conversation with the IT guys and the internet line was installed.
The rented workstations weren't exactly configured the way we wanted them. However, we were able to shuffle graphics and we were back in business. Let's see what tomorrow brings.
Lesson learned: always, always bring your orders to show site and advise your vendors of changes/exceptions as you go.