Dont have unhealthy or dead plants around the front door or house as this represent stagnant chi. Fix any broken items around the house. Dont have two mirrors facing each other as the chi will bounce back and forth creating an unstable environment. These include a corner of a building, straight road coming at your door, telegraph pole, church with spire, single tree facing the middle of your door. If any of the above are present a bagua mirror may be needed to deflect these poison arrows.
Spiral staircases area a no-no.
The corkscrew effect on chi is said to produce confusion and disagreement. Oval or round coffee tables are better than those with sharp corners. Hang pictures in groups or pairs. Bathrooms and toilets should be away from the main areas of the house. The toilet lid must be kept down at all times.