logistics on tiling an odd shaped room

I am planning on tiling my bathroom. The shape is long and narrow with a toilet and closet perpendicularly attached at one end. Like this:


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If I start at the middle of the main room, to get the main part of the room properly aligned, I am going to have to walk on the tile I lay. THe thinset says I shouldn't walk on it, though, for 48 hours!

How do you tile a strangely shaped room like this, making sure the tiles line up properly in the main room, without walking on the tile?

I could start at the back end of the room, but then I am afraid that I won't line the tiles up properly in the main part of the room. Is there a way to do this in one go, or do I need to do it in two pieces, 48hours apart?

Thanks for any help!

Logan

 

Run two perpendicular chalk lines intersecting in the middle of the room. Start laying the tile in the middle, back, quarter and continue finishing that quarter. Then continue at the back of the second back quarter and work toward the door. when half the room is done, continue the other ,front half, again working toward the door. This assumes the room is wide enough to do it this way.

 

Find your center, and layout you want. Pop your square intersecting lines on that layout. Then measure out or dry lay your tiles to the back wall. I pop lines in a graph measuring 4 tiles, if it is a large area. That way I can start where ever I want. The main rule once you actually start laying tiles is... Stay on the F'n line! I have to remind my apprentice all the time.