This means no—or minimal—curtains, drapes, and rugs. Curtains are one more (long) thing for the eye to take in, which can register as clutter and make windows appear smaller. They also, necessarily, block light and the view. If you do elect to have curtains, opt for a sheer, lightweight variety, and make sure the rod extends beyond the windows, so they can rest fully to the side of the window when open.
Exposed floors also reflect light, creating the illusion of more space. While a completely rugless home may not suit your aesthetic, consider reducing the quantity, thickness, color, or busyness of patterns on your rugs.