Here’s where I am on the floor.

Last weekend, I started mixing some mortar and attaching the cement boards to the floor. Note the mess. Next time, only buy premixed stuff. It’s worth the extra cost. It’s way too messy to mix it myself.

Then, I took yesterday off to finish putting down boards, tape all the seams and start laying out tile. It’s going to be very hard to have all the seams in the tile line up, so I may change the layout a bit so it’s not necessary. But this is basically how it should look.