This might be a luxury for the child-free (and dog-free, come to think about it), but we love the look of art on the floor. This example comes from Katin & Brandon's Marblehead house tour and works well to accentuate the distinction between dining room and living room in their open floor plan...
The pairing of the sculpture with the frame makes neither feel out of place. This house is so sparsely "decorated" that the placement of a few pieces on the floor feels natural and comfortable with the rest of the space. What do you think? Do you have art on the floor?
House Tour: Katin & Brandon's North Shore Cape