Also known asdiwali tipsfestival upaytyohar
Design the main door like a face: two shutters as the nostrils, two small niches as the eyes, two jharokhas as the ears, an Om or swastik as the tilak, and the threshold and upper frame as the lips. Ancient texts say such decoration multiplies the power of the main door many times.
Main door and the wall around it
The old custom of circling a coconut on Dussehra, Diwali or Holi when the house is full of confusion and work is not getting done is a way of activating Bhrisha devta, whose samagri is coconut.
E7 (Bhrisha) pad
The deity faces East first and North second, never South; the worshipper faces North for wealth, East for spiritual progress and South or West for tantra, and before a consecrated idol all directions become zero.
Home temple, puja room and festival puja
No, it is wrong. Seat the deity in the West facing East, and sit so that you look at the deity while your face is towards the North. The Lord's direction is what matters, just as the teacher's direction matters in a classroom.