Generally, the bathroom of a house is about four or five square meters. If it is smaller, it should not be too small. If it's too small to hold anything, how can we go to the toilet? Put the toilet against the wall, far from the door. A row of hooks can be attached next to or on the door to hang towels or bath towels. I suggest using opaque sliding doors in the small bathroom. The ventilator is placed above the toilet for ventilation. Put down the water heater at a position staggered from the toilet. Better stay away from the door. Nobody wants to be seen in the shower. Even opaque glass gives people a strange feeling. You can put a yuba on the wall opposite the water heater. You don't want to buy too many Yuba, and the power doesn't need to be too high. After all, the bathroom is not big, and it doesn't need to be too hot. It's too hot and uncomfortable. You don't want to take a sauna.
Put down the sink at the door of the bathroom and wash your hands. After washing, turn around and wipe your hands, which is very suitable. It is best to use ceramic tiles in the bathroom to cover the wall and the ground. Don't stick wooden floors or wallpaper on the wall, because the bathroom will be wet. If it is wet, the wooden floor will be easily soaked and the wallpaper will fall off, so it is not suitable for use in the bathroom. Just use white tiles in the bathroom. It's easy to clean.
This is probably the layout, and the rest depends on personal hobbies. If the bathroom is small, put less useless things, mainly to be clean. The bathroom is clean and gives people a good feeling.