I have a room in serious need of some freshening. In someone else's house, or in a photo, I can quickly and easily see what needs to happen. In my own house, I'm indecisive and procrastinate. I notice myself being very drawn to images of spaces with blue carpets or rugs, but he room in question may or may not need a rug at all. It's our formal dining room, and I actually like the option of bare hardwoods there. Something else to consider is that we have a central hall floor plan, and the dining room is very visible from the entry. There's a multicolored Persian rug as you walk in which can be seen here.
Lydia Marks and Lisa Frantz via Luxe
Riesco and Lapres Interior Design via Domaine
Diamond Baratta via Hamptons Cottages and Gardens
Some of my very favorite rugs are from Madeline Weinrib. Aren't they all gorgeous?
Below are other fantastic options.