Keep Hallways Neutral - Think of hallways as palate cleansers -- the sorbet that's served before diving into the next course. Keeping them neutral allows you to branch into any color in rooms that flow off them."
Photo wall idea -- awesome -- easy
Wish I had done this earlier - Turn a 1x4 into a large ruler for the wall, and record the height of your kids as they grow. You never have to worry about moving to a new house