I recently installed 16" porcelain tile in a new laundry room addition. As luck would have it, the room ended up being the same width as 4 tiles, so I had to do very little cutting to complete the job. Everything came out about 1/2" from the wall which I covered with baseboard.
The trade off with going with this layout is that there are 2 locations where I now have about a 1/2" gap that need to filled that won't be covered by baseboard. One is where the floor meets an aluminum sill plate for a garage entry door, and the other is where it joins an existing bamboo floor.
On the bamboo side, I can cut a thin strip (~3/8") of some leftover flooring which will leave me small enough gap to caulk. However, I haven't figured out what route to take where it meets the sill plate. I'm looking for suggestions on how to bridge that gap. It's going to be almost completely hidden by an overhang from the aluminum sweep attached to the door, so the cosmetics are somewhat secondary. I'd like to do something that will hold up well to the invariable expansion and contraction of the aluminum sill plate.