If you find the energy in your home could use a bit of re-direction, check the position of the doors and use this treatment to get the chi flowing again.  Doors located diagonally to each other are a no-no in feng shui because this causes loss of energy which can disturb the harmony and balance in a home.  Two small mirrors can remedy the situation.  They are placed next to each door (opposite the other door's opening) which balances the tension and guides the flow of chi in healthy ways.  Source: Feng Shui Symbols by Christine M. Bradler and Joachim Alfred P. Scheiner.