In a room where they have mirrors, they are supposed to have like blinds too. but, should you keep the blinds open?
The main important consideration is to ask a question: Does the mirror like object face the bed? If yes, where possible this should be avoided. As these are blinds for the window and if they have mirrors, the best suggestion is to use a curtain instead if this is possible. If you keep the blinds open, the main consideration is: is there sufficient privacy afterwards?
Also, she has a hallway where there are two doors across from eachother. they are not directly across from each other. One is a off to the side and not directly across. she is wondering if she should keep the doors open. in general also, what are they rules about keeping doors open?
In traditional Feng Shui practice, two doors should not face each other directly. If the doors do not face each other directly then there is no threat. But if they do, avoid leaving the doors open all the time. The rationale for this is because the two persons occupying each room would tend to `quarrel' with each other after sometime.
Center for Feng Shui Research