Thanks. I know about the DCOF. But I still want a smaller tile. The extra grout used with small tiles makes the floor even less slippery. I'm trying to create an "aging in place" bathroom, that's still pretty. Would love a few porcelain mosaic suggestions.

@SJ McCarthy Everyone has been super helpful and either the brick is a look you like or you don't which I get but no one has mentioned the brick against the wood laminate except you. The washed grayish brown brick looks completely fine against my existing wood laminate - I included a picture with my floor and the brick tiles and there is nothing wrong with it. The reddish brown brick suggested here is also a washed looked and something I am considering. Both the brick I selected and the tone that was suggested are warm. You say that I am trying to add a very warm floor to cool tones, but how is that wrong? You can mix gray/white cool tones in the same room as warm tones so I am not following where you say that is an issue. I see it all over Pinterest and HGTV with gray walls and orangish brown wood floors and the same toned wood in bamboo shades and baskets so..... And yes, I am saying I want a floor to add warmth due to all the cool tones. Most people select wood floors to add the warm element. I am in a situation where I can't add wood floors so I need another option. I have looked at silver travertine, brown travertine and everything in the middle. I've been to 4 flooring stores. I do not like the look of travertine because I see too much orange in the options that would go with my color scheme. I appreciate your suggestion but I spent $4,000 on the laminate I have throughout my downstairs 3 years ago. It's not going anywhere anytime soon.

Stop searching open forums and you tube videos for random opinions. There are way to many variables with individual projects that will not reflect yours. Heat, humidity, ac, tile temperature, proper procedures, amount of dry time, amount of water used in clean up, type of sponge, many more. Do a mock up made with scrap tile or try the product in a closet. Follow manufactures instructions. If you have further questions call Mapei tech line. 800-992-6273 Manufacturer video. https://www.youtube.com/watch?v=R8SA7d4DLlc Or search the internet and eventually you will find the answer that you want to hear at the risk of making yourself crazy with everyone's opinions:)

The problem with bathmats is that they aren't a solution for the shower floor itself being slippery. In general, shiny tiles are slipperier, but, as mentioned above, you need to check out the DCOF to know what's what. Y0u don't need completely matte for good slip resistance; you just need to pick the right tile. We settled on large format (12" X 12") tiles for our shower that have a sheen to them that is shinier than matte, but they are wonderfully non-slippery even with soapy water all over them. I couldn't slip if I tried. Here is what they look like: