Office.

Your Office desk should be placed in the 'Command' Position.  This simply means placing the desk where you can easily see someone entering the room. 

Do not have the desk facing a wall,  if it's unavoidable, place a beautiful image on the wall and a mirror on the wall so you can see who enters the room.

Have a wall behind you,  a picture of a mountain on the wall behind you is even better as the mountain 'supports' you.

Have a healthy, lush, green plant in your office to support your business growth and your health.

Have good lighting/lamp on your desk for good vision.

Keep your office, clean, neat & tidy.  Deal with the paperwork and file it away.  

Open blinds, curtains, outside blinds, windows to allow in daylight and fresh air.