I finished my king sized trip around the world. It's ready for borders now. Question is - how do I measure for the borders??? *This thing is huge!* My friend mentioned something about taking three measurements, but I'm uncertain how to proceed. It's longer than the bed, which is ok, it will be more of a bedspread and have pillow room, which my dh actually prefers. The approximate measurements are 115" x 90". How big should I make the borders? Should I do two borders, or is one sufficient for a quilt this large? Or do 2 borders, both the same sized, but only 3" each? (That's kind of/sort of what I'm thinking about.) The squares are 6"