When your client is your best friend, its the irony at its best. While planning on interiors for my best friends cabin, it was important that I consult Vastu design for the same and then implement whats needed. 

1. Most of us work 9am - 6pm, making 11am - 3pm our most productive period, it then when the sun is moves from east to west and thus at the above mentioned time we soak the positive energy form the sun.
2. It imperative not to face the walls directly as our negative energies reflect back to us
3. Sofa is facing east is another sign of positiveness that there is always day after night