When choosing tile for the bathroom I find that many people are so afraid to make a mistake they end up settling on basic white.  While a basic white tile has its place, it’s best installed on the walls, not on the floor where it will show every bit of dirt.  But if you must have a white tile floor, consider adding a pattern that incorporates white and one or two other colors.  For older homes, a hex tile is a great solution.  You can order a custom pattern like this (or create your own)  from Dal-Tile, which is available nationwide.  One thing to watch out for: the tile patterns are assembled by hand, and there are sometimes mistakes (like a white tile where there is supposed to be gray).  You can fix this in the field, or leave it and accept it as part of the hand created look of the tile.

Photo of Tile Pattern