One of the best ways to reduce your total show cost is to use a trade show exhibit that is easy to assemble. This will allow your staff to assemble the display which reduces show labor cost. You can also ship smaller, portable displays directly to hotels which usually do not charge for receiving them.
There are products like the Hop Up Display that are extremely easy to assemble and can even be carried onto airplanes. With this display you can literally fly in the day of the show and set up in about 20 minutes total. This can reduce shipping costs and hotel room costs. There are many banner stands that can carried onto airplanes and assemble just as quickly. They are also lower in total cost which can help reduce overall show costs.