When communicating ideas to clients I use a variety of methods. I create 3D computer imaging for overal spatial orientation and scale. This helps my client's see the spaces before they are remodeled or built.
Vacation homes are typically used for short periods of time and not for months on end. This means that the way the home is used is a bit different from primary residences. I have three vacation rentals and most of my client projects are for vacation homes.
It is not the size of a home or the stuff in the home that matters. What really matters it how the space is used, and if the “stuff” has meaning, importance, or serves a purpose. People often get caught up in making homes bigger than they need.