If the dressing room is in the SSW, can a mirror not be used there?
A dressing room has four walls, so fix the mirror on its North or East wall. If the wash basin is already in the South and its mirror must be there, fix a mirror of the same size on the North wall; the pit made in the South is matched by one opposite and the effect evens out.
Related questions
Can a mirror be fitted on a wardrobe in the S, SSW, SW, WSW or West?
No. Wardrobe mirrors also belong on the North or East wall. Some say the North-West is also allowed because the mirror represents the water element and the Moon.
The tijori should face North, but my small cupboard only opens to the South; can a mirror be used?
Yes, a mirror can be used, and East is also acceptable. Better still, place the tijori where it faces correctly, because it receives the energy of whatever it faces; facing Kuber's direction it receives Kuber's energy.
Can a nandavart dwar be made in a flat?
Yes, it can be made in a flat too.
For depth at an entrance in the North, is one big mirror better, or will design pieces do?
Use one whole mirror on the North wall. Do not join small pieces of mirror for a design; that turns mangal (auspicious) into amangal.
Must the house be at 0 degrees for a sarvatobhadra dwar?
By definition it is at 0 degrees with doors in all four directions, but it can be made otherwise too: build the doors on whichever pads fall on Pushpdant, Grihakshat, Bhallat and E4.
Where should family photos be put?
Anywhere except the South and SSW zones, on a wall where everyone's face looks North, that is, on the South wall. The living face the direction of life; only the departed are made to face Yama in the South.