The first thing I tried were these folding screens that I bought from Store Supply Warehouse. They were inexpensive and easy to store/transport.
But they fell over in the wind too much. My main problem with them is that they simultaneously made my booth look cluttered, because you can see through them, and empty, because you can see through them. 
For my next attempt, I used the screens in combination with pedestals and wall panels we built. This looked better, I thought, but the pedestals were a pain to assemble at the show and they were tippy. It was also difficult to hang the panels from the tent sides. 
So this time I tried probably the most obvious solution that for some reason, I had never considered before. We used folding tables on risers, covered them with fabric and built small pedestal-like shelves for the table top to create levels. It was inexpensive, easy to set-up and take down, versatile, and the booth didn't look empty. I was pleased. There will always be room for improvement, but I feel like we got alot closer to a solution with this display.
