One part of fixing up the B&B is hanging dark blue bunting on the rails of the upper level. However, that bunting appears and reappears throughout the show, including long before it was hung.
A main element of the plot is Diane showing up at the B&B. She does so due to her car getting stuck when she tried to turn around on a road. The car's back wheels were in a slight ditch. The car however was a front wheel drive, and since the front wheels were still on the road, she could have easily completed the turn by pulling out of the ditch. As such, she would have never shown up at the B&B.