I'd just like to say that grouting makes an unholy mess.
I mixed up a batch of grout, and proceeded to grout all three tile walls.

Here I am grouting tile. What fun. After grouting, I sponged the walls, then let them dry. This leaves a haze all over everything.

Haze on the side wall. After the walls dried, I wiped the haze off with a dry rag. Yes, it was dusty. The tape is to keep the marble from getting scratched by the grout.

Here's the floor, all hazed up.
I was using sanded grout on the large tiles. It would scratch the marble, so I had to use unsanded grout on that part. And after that, I had to caulk up the corners and the floor joints and the top edge of the marble. And after THAT, I had to seal the grout to keep water from seeping into it.

Here's the final result, all grouted and sealed. Also notice the installed shower fixtures. Still need to get those corner shelves up...

The vanity area. I need to do some touch-up painting where the caulk went. No biggie. And I installed the cover plates for the switch and outlet. No more loose wire shock hazard!

Floor! As soon as I do the touch-up painting, I can install the medicine cabinet and toilet! Won't be long now.