I have now one place for my morning and evening rituals in the house. Since it stands for calm and inner peace now, and sometimes I just go there just to get away from all the stress.
Is it wise to do other things, more than your rituals and meditation, e.g. do some office work, at this place?
That is really up to your own feelings about your space. I do mine in my living room and I rarely work in there. A clear space or a corner of the room is important and avoid cluttered rooms.