If i were you, i will get 3 sets of curtain for every room, 3
sets of curtain for living room.
I will change the curtain every week, and repaint the wall every 2
months to see which paintwork will suit the curtain
Also, on top of the curtains, i will buy 3 different sets of
furnitures, and interchange them in each room, and see which
combinations is the best
It is important to have 3 different sets of bedsheets/pillow
cases/etc for to go with the 3 different sets of curtains.
After which, i will invest in different smell of air fresheners to
see which air fresheners fit with which design combinations.
It would be a bonus if i can get 3 different lighting
schemes(colours) to change the mood of the room.