When you set up a booth at a show, you must not only decide what works best to allow your customers to see your products but also what keeps your customers from walking into or bumping your neighbor's booth. I have seen very elaborate booths that end up having to be modified to allow for the other booths around them. I recommend designing your booth at home before taking it "on the road". When you are setting up your mock display remember about the other booths that will be surrounding you. Sometime you might be lucky enough (or have paid extra for) to have a corner booth. That's why you may want to consider making your display versatile enough for when you have extra space.