Hi,What are the rules in selecting area rugs for different spaces in one's home? Do the rugs from the different spaces have to coordinate with one another? ie entryway, dining, living room etc? What happens if the entryway is on the lower floor and the family room is on the second floor....so the rugs i select for the spaces have to coordinate? I tend to like the persian style rugs......so if i have a rug like this in my living/family room....am i limited to what i can select for my entryway? ie can't select a print b/c it would clash?And then what about bedrooms? Do they have to flow with the space too?Thanks!