Laying tile, always start from the center? Or will a corner do if the walls are OK.
JCW is exactly correct, but just to add a bit, before setting the chalk lines from which I will lay tile, I like to lay out some temporary lines, not chalked, held in place with bricks, or whatever. From those, I can do some rough measurements, to make sure that all of my borders are of relatively similar width, and that none of them will be too narrow to look good when I invariably have to compnensate for a wall that is not perfectly straight. I also look at doorways, to make sure that I like the way that the tiles will lay in them. If I see something that I don't like, I move my stings over a bit, and check to see if I have messed up something across the room. Once I am satisfied, I put a mark where my line is, chalk it, and begin. It takes only a few extra minutes for this, but it works for those of us who don't do it every day.