When tiling a bathroom floor and walls what do you grout first the floor or the walls

Well, you have to use common sense here, robertjag, I would say the walls first, because you will have to walk on the floor and tiling it first would not do the new grout and tile any good at all. Would only delay the whole project if you did the floor first.

Tick

Right, walls first. I'd suggest a 2 part epoxy grout which will porovide better stain protection.