Ok, thank you all for your advice. I started painting and staining today. If I want to leave most of the decorating choices to my daughter, but want the house to be a surprise, what is the best way to make it "neutral" for her. I am planing to prime the walls and ceilings with white and staining the floors but I am not sure if there is a good way to wallpaper in a way she could easily change it later?