I basically have 5 rooms.. 2 bedrooms, a bath, and kitchen/living room in my apartment so I put living room since that is where I'm at most of my waking hours. This room also includes a computer desk, my knitting and the tv... so everything is handy.
This is where I DRINK most of my tea while at home.. at work it is at my desk.
If using gaiwan, I brew in the kitchen, then bring my cup and pitcher to the living room. If by pot.. I have my tea tray I carry in with creamer/sugar, etc and partake.. again, in my living room.