1) Note which rooms are visible to one another
2) Choose a color for the biggest, most central room in the house - Whether this room is your open-concept living room, kitchen, and dining area or entry... This room is the one to center around. Choosing a soft, neutral hue such as a cream, light gray, or greige can make all other colors easy.
4) Have a PLAN when looking at an open space... - If you have a two-story living room with access to the 2nd floor, be prepared to see both areas at once.